Sunday, December 30, 2012

Flu Shots, Lack of Consent, and Freedom of Choice


Despite nominal scientific support for all vaccinations (some specific remedies are effective), how aggressive is a culture than can not tolerate dissenters? When some vaccines are hardly even occasionally effective, why then do so cling to the perception of success rather than on actual success?

The flu shot is a crapshoot… it may or may not work, even when the vaccine matches with the predominant virus.

"A northern Indiana hospital has fired eight employees who refused to get flu shots the hospital says are needed to protect patients from the potentially deadly illness." [Associated Press]

The problem I find is a lack of a high success rate in regards to a potential health threat. If chances were nearly 100% that one would contract and fall victim to a particular illness or virus, and there were a precautionary measure which were equally effective at combating that threat, then the market would support that solution. Only when we have a government which intervenes in markets and individual choice do we see situations such as the influenza shot forced upon a population  people will seek solutions proven effective when given the freedom to do so. We also need the freedom to make bad choices so that we can learn from them...

From the CDC:

    How well do inactivated influenza vaccines work in randomized control trials?

    As vaccine efficacy from a randomized clinical trial is the gold standard for how well a vaccine actually works, vaccine effectiveness estimates obtained from observational studies can equal, but not exceed, estimates of efficacy. Many factors that can result in substantial bias in effectiveness studies tend to bias the vaccine effect downwards.

    How well do influenza vaccines work during seasons in which the vaccine strains are not well matched to circulating influenza viruses?

    When vaccine strains are not well matched with circulating influenza viruses, the benefits of vaccination may be reduced. It is not possible to predict how well the vaccine and circulating strains will be matched in advance of the influenza season, and how this match may affect vaccine effectiveness.

Full article: 
http://junkscience.com/2013/01/01/ind-hospital-fires-8-workers-who-refused-flu-shot/

Saturday, December 29, 2012

Passing Comet may be Brighter than the Moon

http://www.sott.net/article/255353-Approaching-comet-may-outshine-the-moon

A comet which will pass the Earth November 2013 may be brighter than our own moon.

Cosmic Dust Bunnies

Like dust bunnies that lurk in corners and under beds, surprisingly complex loops and blobs of cosmic dust lie hidden in the giant elliptical galaxy NGC 1316. This image made from data obtained with the NASA/ESA Hubble Space Telescope reveals the dust lanes and star clusters of this giant galaxy that give evidence that it was formed from a past merger of two gas-rich galaxies. 

Source

Wednesday, December 19, 2012

Star Trails

Star trails in the southern hemisphere. Shooting data: 8 hours, Kodak E 200, 16mm f / 5.6.

link

Tuesday, December 18, 2012

Fish Tornado

Apparently there's such a thing as a fish tornado, and this is what it looks like:

This video was taken by photographer/marine biologist Octavio Aburto at Mexico's Cabo Pulmo National Park


From grist

Monday, December 17, 2012

Expedition 34′s Ride to Space Rolls to the Launchpad

The Soyuz rocket is erected into position after being rolled out to the launch pad by train on Monday, December 17, 2012, at the Baikonur Cosmodrome in Kazakhstan. Credit: (NASA/Carla Cioffi)

Early today the Soyuz rocket and Soyuz TMA-07M capsule were rolled out to the launch page at the Baikonur Cosmodrome in Kazakhstan in preparation for the December 19 launch of the Expedition 34/35 crew. On board will be Flight Engineer Tom Marshburn of NASA, Soyuz Commander Roman Romanenko and Expedition 35 Commander Chris Hadfield of the Canadian Space Agency who will spend five months aboard the International Space Station. We've been highlighting some of the training Hadfield has been through the past two and a half years, and per tradition, Hadfield and his crewmates were not present at the rollout today. Instead they were getting their hair cut. "I'm not superstitious," Hadfield said, "but I'm all for traditions, especially ones that serve a good purpose. I'll need short hair while I'm on the space station."

The launch is scheduled for 12:12 UTC (7:12 a.m. EST) on Wednesday, beginning a two-day journey to the station.

More: universetoday

Sunday, December 16, 2012

Onward to the Edge

We're moving onward to the edge
On this fragile, little world

https://www.youtube.com/watch?v=akek6cFRZfY&feature=youtube_gdata_player

Lyra

Lyra was above me when summer brought its heat to Texas, but she's hovering near the horizon now. And trees all around doesn't help much...

Wednesday, December 12, 2012

NGC 2264, One Busy Body

NGC 2264 is the designation number of the New General Catalogue that identifies two astronomical objects as a single object: -the Cone Nebula, -the Christmas Tree Cluster, Two other objects are within this designation but not officially included: -Snowflake Cluster, -the Fox Fur Nebula. All of the objects are located in the Monoceros constellation and are located about 800 parsecs or 2600 light-years from Earth. NGC 2264 is sometimes referred to as the Christmas Tree Cluster and the Cone Nebula. However, the designation of NGC 2264 in the New General Catalogue refers to both objects and not the cluster alone. 

Link

Monday, December 10, 2012

Google Doodle Honors Ada Lovelace

https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEia8nCtzc4gJgZq1eLeYpiQ6tPWTqZBH2FhLKq2w5M7qGVx-M0FtHU76k9sVO1TQpjgdhyphenhyphenGscFFGadielty0lQwazunbMNeOrMLdsZ0zGpjXxaFz7-CybGKxp52bY_nNwBMNWUGLAH509w/s1600/ada_lovelace-2012-hires.jpg
Google is celebrating the 197th birthday of Ada Lovelace - considered to be the world's first computer programmer - with a homepage doodle that honors her contributions to computer science.
The doodle features Lovelace at her desk, hard at work on an equation, the paper spilling onto the floor and forming the Google logo. Bubbles atop the logo show the evolution of the computer, from Lovelace's equations to bulky mainframes to today's portable laptops and tablets.
Lovelace was not the only math whiz in her family. Though her father was well-known poet Lord Byron, her mother - Annabella Milbanke Byron - reportedly did not want Ada to follow in his "volatile, poetic" footsteps, and therefore had Ada focus on science and math. It worked, and Ada became a mathematician and worked with Charles Babbage, who was developing his Analytical Engine. Since some of her programming notes for the machine survived, Lovelace earned the distinction of being the first documented programmer in the world.
Since 2009, Lovelace fans have honored her contributions with an official Ada Lovelace Day. This year, it took place on Oct. 16 and the 2013 celebration is scheduled for Tuesday, Oct. 15.
"Ada Lovelace Day is about sharing stories of women — whether engineers, scientists, technologists or mathematicians — who have inspired you to become who you are today," according to the organization's website. "The aim is to create new role models for girls and women in these male-dominated fields by raising the profile of other women in STEM."
Enthusiasts are encouraged to add their own stories to the findingada.com website.

More: Google Doodle Honors Ada Lovelace, World's First Programmer | News & Opinion | PCMag.com

Saturday, December 8, 2012

PIA14885, the Dragonfish Nebula

This infrared image from NASA's Spitzer Space Telescope shows the nebula nicknamed "the Dragonfish." This turbulent region, jam-packed with stars, is home to some of the most luminous massive stars in our Milky Way galaxy. It is located approximately 30,000 light-years away in the Crux constellation. The massive stars have blown a bubble in the gas and dust, carving out a shell of more than 100 light-years across (seen in lower, central part of image). This shell forms the "toothy mouth" of the Dragonfish, and the two bright spots make it up its beady eyes. The infrared light in this region is coming from the gas and dust that are being heated up by the unseen central cluster of massive stars. The bright spots along the shell, including the "eyes," are possible smaller regions of newly formed stars, triggered by the compression of the gas and dust by winds from the central, massive stars.  

More

Wednesday, December 5, 2012

Supernova Remnant W44

The aftershock of a stellar explosion rippling through space is captured in this new view of the supernova remnant called W44. The image combines longer-wavelength infrared and X-ray light captured by the European Space Agency's Herschel and XMM-Newton space observatories. 

More

International Standards

http://www.vexen.co.uk/images/iso.gif

I often hear complaints in the US about the date formats, similar to the resistance to moving to the metric system. Americans typically use the numerical date format 12/5/2012 for today, while much of the rest of the world has adopted the ISO 8601 international standard of YYYY MM DD. If you think of the scale of specificity and it makes sense. If a company or group were only operating in the US, it might be acceptable to revert to non-standard or legacy formats. Since we now have a global economy, it's probably better to just learn the standard rather than to hold on to outdated formats (pardon the pun). Time to join the modern age, America.

International standard date and time notation

Monday, December 3, 2012

Eagle Nebula

The Eagle Nebula (catalogued as Messier 16 or M16, and as NGC 6611) is a young open cluster of stars in the constellation Serpens, discovered by Jean-Philippe de Cheseaux in 1745-46. 

Source

Monday, November 26, 2012

Jellyfish Nebula

IC 443 (also known as the Jellyfish Nebula and Sharpless 248 (Sh2-248)) is a Galactic supernova remnant (SNR) in the constellation Gemini. On the plan of the sky, it is located near the star Eta Geminorum. Its distance is roughly 5,000 light years from Earth. IC 443 may be the remains of a supernova that occurred 3,000 - 30,000 years ago. The same supernova event likely created the neutron star CXOU J061705.3+222127, the collapsed remnant of the stellar core. IC 443 is one of the best-studied cases of supernova remnants interacting with surrounding molecular clouds. 

Source

Sunday, November 25, 2012

deGrasse Tyson on Collapsitarians

I'm all for having a last supper at the Restaurant at the End of the Universe, but the skeptic in me also makes me question an unknown future. I need hard evidence, not speculation. Give me something substantiated.

Seagull Nebula

This image from ESO's La Silla Observatory shows part of a stellar nursery nicknamed the Seagull Nebula. This cloud of gas, known as Sh 2-292, RCW 2 and Gum 1, seems to form the head of the seagull and glows brightly due to the energetic radiation from a very hot young star lurking at its heart. The detailed view was produced by the Wide Field Imager on the MPG/ESO 2.2-metre telescope. Credit: ESO. Tap © to visit the web site.

Source

Wednesday, November 21, 2012

The Centre of the Milky Way

The central parts of our Galaxy, the Milky Way, as observed in the near-infrared with the NACO instrument on ESO's Very Large Telescope. By following the motions of the most central stars over more than 16 years, astronomers were able to determine the mass of the supermassive black hole that lurks there.

Source

Tuesday, November 13, 2012

Dumbbell Nebula

The Dumbbell Nebula (also known as Apple Core Nebula, Messier 27, or NGC 6853) is a planetary nebula in the constellation Vulpecula, at a distance of about 1,360 light years. This object was the first planetary nebula to be discovered by Charles Messier in 1764. At its brightness of visual magnitude 7.5 and its diameter of about 8 arcminutes, it is easily visible in binoculars, and a popular observing target in amateur telescopes. 

Friday, November 9, 2012

Science Fucking Rocks!

Time-Travel is easy.  All of us do it every day.  But only in one direction.  For thousands of years,scientists  and  philosophers  have  talked  of  time  as  a  "river  that  flows  steadily  onward  year-after-year". But  what  if  there  were  a  way  to  swim  against  the  flow?    Or  to  run  down  the  bank  ahead  of  the  river? Might we might be able to journey back-and-forth in time just as we travel through space.  The idea is not as far-fetched as it sounds.  And the implications for the future are intriguing. 

Super-Science , NOT Fantasy!

Ever  since  Einstein,  scientists  have  considered  time  and  3-dimensional  space  not  as  2  different things  but  as  different  aspects  of  a  4-dimensional  "space-time".    Quantum  physicists(who  study  the world of subatomic particles) often find it easier to explain events by assuming time runs  backward as well as forward despite however much it defies common sense.
At the other extreme, cosmologists looking at the Universe on a grand scale have found that  space and  time  can  be  warped  by  gravity  and speed.    Back  in  the  1940s,  German mathematician  Kurt Goedel  proved  that  if  we could  warp  and  twist  space-time  enough creating  what  he  called  "Closed, Time-like Curves (CTC)" -- then we could bore tunnels through time itself.  But no one knew how to do the twisting.  Until black holes.

Sounds like another great addition to my regular reads.

GNANASAMBANDAN:
I have read many books regarding philosophy,religion but they doesn't satisfies the thirst of knowing the real existence of who we are? and where are we from? but little knowing of all those stuffs got a drastic change after read Buddha's concepts and thoughts, and studying the mysteries of universe paving the way to visualize the things, and understands the shapes and structures of my musings. Here i share my thoughts and things that makes me exciting and startling.


PIA16438: Hot Young Stars

The Milky Way and other galaxies in the universe harbor many young star clusters and associations that each contain hundreds to thousands of hot, massive, young stars known as O and B stars. The star cluster Cygnus OB2 contains more than 60 O-type stars and about a thousand B-type stars. Deep observations with NASA's Chandra X-ray Observatory have been used to detect the X-ray emission from the hot outer atmospheres, or coronas, of young stars in the cluster and to probe how these fascinating star factories form and evolve. About 1,700 X-ray sources were detected, including about 1,450 thought to be stars in the cluster. In this image, X-rays from Chandra (blue) have been combined with infrared data from NASA's Spitzer Space Telescope (red) and optical data from the Isaac Newton Telescope (orange). [...]

Source

Tuesday, October 30, 2012

PIA16216: Spitzer Sees Stray Starlight

PIA16216: Spitzer Sees Stray Starlight (Artist's Concept) New research from scientists using NASA's Spitzer Space Telescope suggests that a mysterious infrared glow across our whole sky is coming from stray stars torn from galaxies. When galaxies grow, they merge and become gravitationally tangled in a violent process that results in streams of stars being ripped away from the galaxies. Such streams, called tidal tails, can be seen in this artist's concept. 

Curious spiral spotted by ALMA around red giant star R Sculptoris

Observations using the Atacama Large Millimeter/submillimeter Array (ALMA) have revealed an unexpected spiral structure in the material around the old star R Sculptoris. This feature has never been seen before and is probably caused by a hidden companion star orbiting the star. This slice through the new ALMA data reveals the shell around the star, which shows up as the outer circular ring, as well as a very clear spiral structure in the inner material. Credit:ALMA (ESO/NAOJ/NRAO)/M. Maercker et al.

More

Wednesday, October 24, 2012

PIA15817

Look at that beautiful system. The star is dying, but looks alive with activity. 

A dying star is throwing a cosmic tantrum in this combined image from NASA's Spitzer Space Telescope and the Galaxy Evolution Explorer (GALEX), which NASA has lent to the California Institute of Technology in Pasadena. In death, the star's dusty outer layers are unraveling into space, glowing from the intense ultraviolet radiation being pumped out by the hot stellar core. This object, called the Helix nebula, lies 650 light-years away, in the constellation of Aquarius. [...]

More

Tuesday, October 23, 2012

Got Mole?

https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEh6hCPM2Z6NMQEpBrV-7jBxq5NDS37n9BXV17GOuMRoSMaaORgeMPgDXPU8ylCKzzPl_T4_gfDno1XianULfXWxCOP4geq4gwHGisJ44K-EZvb35Qs8dItjwsYo_HLCaW_lph-qxbIguKo/s1600/moletshirt.jpg


Happy Mole Day!

Celebrated annually on October 23 from 6:02 a.m. to 6:02 p.m., Mole Day commemorates Avogadro's Number (6.02 x 10^23), which is a basic measuring unit in chemistry. Mole Day was created as a way to foster interest in chemistry. Schools throughout the United States and around the world celebrate Mole Day with various activities related to chemistry and/or moles.


For a given molecule, one mole is a mass (in grams) whose number is equal to the atomic mass of the molecule. For example, the water molecule has an atomic mass of 18, therefore one mole of water weighs 18 grams. An atom of neon has an atomic mass of 20, therefore one mole of neon weighs 20 grams. In general, one mole of any substance contains Avogadro's Number of molecules or atoms of that substance. This relationship was first discovered by Amadeo Avogadro (1776-1858) and he received credit for this after his death.

Make sure to have some yummy guacamole to celebrate too!


http://scienceblogs.com/ethicsandscience/wp-content/blogs.dir/377/files/2012/04/i-1c8dc7dc09fff470fda4062b1226449f-Avogadro.jpg

Friday, October 19, 2012

Exoplanet Tau Boötis b

This artist's impression shows the exoplanet Tau Boötis b. This was one of the first exoplanets to be discovered back in 1996, and it is still one of the closest planetary systems known to date. Astronomers using ESO's Very Large Telescope have now caught and studied the faint light from the planet Tau Boötis b for the first time. By employing a clever observational trick the team find that the planet's atmosphere seems to be cooler higher up, the opposite of what was expected. Credit: ESO/L. Calçada. Tap © to visit the web site.

Source link

Stellar flare hits HD 189733b


This artist's impression shows exoplanet HD 189733b, as it passes in front of its parent star, called HD 189733A. Hubble's instruments observed the system in 2010, and in 2011 following a large flare from the star (depicted in the image). Following the flare, Hubble observed the planet's atmosphere evaporating at a rate of over 1000 tonnes per second. In this picture, the surface of the star, which is around 80% the mass of the Sun, is based on observations of the Sun from the Solar Dynamics Observatory. Credit: NASA, ESA, L. Calçada. Tap © to visit the web site.

Source link

Find more pictures and learn more about the Universe in Star Walk app for iPhone and in Star Walk app for iPad

Rare Dragon/Shark Found In Japan


Rare Dragon/Shark Found In Japan - YouTube

1,000,000,000,000 Frames/Second Photography


1,000,000,000,000 Frames/Second Photography - Ramesh Raskar - YouTube

Wednesday, October 17, 2012

Large bright fireball with orange-green tail breaks apart over Queensland, Australia, 29 August 2012

It's an invasion!

29 Aug 2012 – Ann Tanner and Alfie Coghill, Brisbane, Queensland 8.15pm

Less than 5 seconds' visibility, facing North. North – East direction. Bright white ball of fire, brighter than the moon. Large, round, white ball of fire, dropped at speed from the sky. Biggest shooting star I've ever seen!

29 Aug 2012 – Jak Yeppoon, Capricorn Coast, Queensland, Australia 20.20pm/aest

4 seconds – Went behind mountain. North – West. I was facing West. Very bright green and an orange tail at the end. As bright as a weld flash solid… clean line, amazing.

29 Aug 2012 – Michael Klazema & Lisa Eroshkin Mackay, Queensland, Australia 20:15 EST

3/4 sec – NE-SW. White fireball with a short white tail with debris of green and orange bits falling off. Very large bright star. On its travel a short distance from the horizon there appeared to be a short break in the light but reappeared instantaneously before fading out on the horizon.

Monday, October 15, 2012

STEREO catches an eruptive prominence

Via Jenny Winder on Google+ I saw this way cool video of an eruptive prominence on the Sun: a towering arc of plasma held aloft by the Sun's magnetic fields. Sometimes these field lines are unstable, and the plasma can blast away from the Sun and out into space:

This video was taken by one of NASA's twinSTEREO spacecraft; a pair of probes with one orbiting well ahead and the other behind the Earth. They stare at the Sun, literally giving us an angle on it we can't get from our planet. Specifically this was from the STEREO Ahead spacecraft, and combines an ultraviolet view of the Sun itself together with a visible light portion that shows the Sun's outer atmosphere, called the corona.

You can see the prominence form, rise up, and then erupt away into space over the course of one day, on October 6-7, 2012. Sometimes this material rains back down to the surface, and sometimes it escapes entirely. When it does the latter, it can flow outward, impact the Earth, and cause a geomagnetic storm. Usually those do us no harm, though if they get big they can disrupt satellites and potentially cause power outages. More likely they just create gorgeous auroraewhich can be photographed from the ground.

It's actually rather amazing how many space-based eyes we have on the Sun and the amount of data they send back. The Sun is a feisty beast, and getting feistier as we approach the maximum part of its magnetic cycle. The more we observe it, the more we learn, and learning is always good.



Original Page: http://feedproxy.google.com/~r/BadAstronomyBlog/~3/i8qNu1JDEUk/

Asteroid Vesta

There's some topics on Astronomy Cast that we wait until we are good and ready, until the science is all in. The Dawn mission has completed it's mapping operations at asteroid Vesta and it's now moving on to Ceres. This gives us a great opportunity to take a detailed look at this amazing asteroid, report on the science findings, and give you a preview of what's coming next.



Original Page: http://www.astronomycast.com/2012/10/ep-274-vesta/

Meet a science committee that doesn't get science

In general, we only become aware of a politician's position on scientific issues during the campaign season. And, with a few exceptions like energy and climate policy, they rarely become campaign issues for anyone other than presidential candidates. So for the most part, it's rare to have a good picture of what our elected representatives think about science and technology.

If only that were true this year.

And from the Show-Me (how to think) state, we have another reason that government is always the last option for anything. 

Missouri's Todd Akin, a Representative running for Senator, made headlines through his bizarre misunderstanding of biology, specifically that of the female reproductive system. Overcome by his desire to believe that pregnancy (and thus abortion) shouldn't be an issue for rape victims, he infamously claimed that the female body could somehow block pregnancy in the case of "legitimate rape."

I'm not sure if this falls more under science, religion, or politics, or whether three have collided at an intersection, leaving little recognizable of any higher thinking...

Original Page: http://arstechnica.com/staff/2012/10/editorial-meet-a-science-committee-that-doesnt-get-science/

Wednesday, October 10, 2012

Mega Starbirth Cluster


This illustration shows an artist's impression of the so-called Lynx arc, a newly identified distant super-cluster that contains a million blue-white stars twice as hot as similar stars in our Milky Way galaxy. The Lynx arc is one million times brighter than the well-known Orion Nebula, a nearby prototypical 'starbirth' region visible with small telescopes. The stars in the Lynx arc are more than twice as hot as the Orion Nebula's central stars, with surface temperatures up to 80 000›C. Though there are much bigger and brighter star-forming regions than the Orion Nebula in our local Universe, none are as bright as the Lynx arc, nor do they contain such large numbers of hot stars. The stars are so hot that a very large fraction of their light is emitted in the ultraviolet that makes the gas glow with the green and red colours illustrated here.  

link

Friday, October 5, 2012

Astronomy: Good Night, Vega

Somehow, without forcing it, my eyes are drawn to the star Vega. In the summer, it's nearly overhead from central Texas, and quite bright, pointing the way to Lyra.

The Planet, the Galaxy and the Laser

Image of the night sky above Paranal on 21 July 2007, taken by ESO astronomer Yuri Beletsky. A wide band of stars and dust clouds, spanning more than 100 degrees on the sky, is seen. This is the Milky Way, the Galaxy we belong to. At the centre of the image, two bright objects are visible. The brightest is the planet Jupiter, while the other is the star Antares. Three of the four 8.2-m telescopes forming ESO's VLT are seen, with a laser beaming out from Yepun, Unit Telescope number 4. The laser points directly at the Galactic Centre. Also visible are three of the 1.8-m Auxiliary Telescopes used for interferometry. They show small light beams which are diodes located on the domes. The exposure time is 5 minutes and because the tracking was made on the stars, the telescopes are slightly blurred. Credit: ESO/Yuri Beletsky. Tap © to visit the web site.

Source link

Find more pictures and learn more about the Universe in Star Walk app for iPhone and in Star Walk app for iPad

Wednesday, October 3, 2012

Have you vaccinated your children yet?

Wouldn't it be great if science were finally able to eradicate superstition and ignorance throughout the world?

I don't even think I would miss the Republicans.

The Immoral Minority: Have you vaccinated your children yet?

Monday, October 1, 2012

New comet might blaze brighter than the full Moon

halebopp_400x223
File photo of Comet Hale-Bopp which wowed observers in 1997. Image: Kazuhiro Seto.

A new comet has been discovered that is predicted to blaze incredibly brilliantly in the skies during late 2013. With a perihelion passage of less than two million kilometres from the Sun on 28 November 2013, current predictions are of an object that will dazzle the eye at up to magnitude —16. That's far brighter than the full Moon. If predictions hold true then C/2012 S1 will certainly be one of the greatest comets in human history, far outshining the memorable Comet Hale-Bopp of 1997 and very likely to outdo the long-awaited Comet Pan-STARRS (C/2011 L4) which is set to stun in March 2013.

The new comet, named C/2012 S1 (ISON) was found by the International Scientific Optical Network (ISON) in Russia on 21 September when astronomers Vitali Nevski and Artyom Novichonok captured it on CCD images taken through a 0.4-metre reflector. Its near-parabolic orbit suggests that it has arrived fresh from the Oort Cloud, a vast zone of icy objects orbiting the Sun, pristine remnants of the formation of the Solar System.

C/2012 S1 currently resides in the northwestern corner of Cancer. At magnitude +18 it is too dim to be seen visually but it will be within the reach of experienced amateur astronomers with CCD equipment in the coming months as it brightens. It is expected to reach binocular visibility by late summer 2013 and a naked eye object in early November of that year. Northern hemisphere observers are highly favoured. Following its peak brightness in late November it will remain visible without optical aid until mid-January 2014.

Comet brightness predictions sometimes exceed their performance. Amateur astronomers of a certain age may remember the Comet Kohoutek hype of 1973 – not quite the 'damp squib' it has been portrayed, since it reached naked eye visibility! Even if C/2012 S1 takes on the same light curve as Kohoutek it is certain to be spectacular, quite possibly a once-in-a-civilisation's-lifetime event.


Sunday, September 30, 2012

PIA14104


This glowing emerald nebula seen by NASA's Spitzer Space Telescope is reminiscent of the glowing ring wielded by the superhero Green Lantern. In the comic books, the diminutive Guardians of the Planet "Oa" forged his power ring, but astronomers believe rings like this are actually sculpted by the powerful light of giant "O" stars. O stars are the most massive type of star known to exist. Named RCW 120, this region of hot gas and glowing dust can be found in the murky clouds encircled by the tail of the constellation Scorpius. The ring of dust is actually glowing in infrared colors that our eyes cannot see, but show up brightly when viewed by Spitzer's infrared detectors. At the center of this ring are a couple of giant stars whose intense ultraviolet light has carved out the bubble, though they blend in with other stars when viewed in infrared. The green ring is where dust is being hit by winds and intense light from the massive stars. The green color represents infrared light coming from tiny dust grains called polycyclic aromatic hydrocarbons. These small grains have been destroyed inside the bubble. The red color inside the ring shows slightly larger, hotter dust grains, heated by the massive stars. This bubble is far from unique. 

Wednesday, September 19, 2012

Astrophotography: Auriga IC 405, 410, 417, M38

IC405_410_D_F_STACK_200mm_small.jpg
by: SBERRADA

Description}: I was fortunate enough to go to Bowron lake prov. park in BC Canada, and stayed at Bowron Lake Lodge. The sky is black (zero light pollution). Also heaven for nature lovers with snow-capped mountains, lakes with crystalline water, and aboundant forests. I took my HEQ5, 80mmAPO and Canon F4L usm lens with 2 canon T3i's (one modified) This is a wide angle at 200 mm of Auriga using Non-modified camera showing IC405, 410, 417 and M38. 10 x 6 min at ISO1600. Regards to everyone

Original Page: http://www.astrophotogallery.org/member-galleries/p10247-auriga-ic-405-410-417-m38.html

Tuesday, September 18, 2012

Catch and Release - Texas Brown Tarantula


Here is a beautiful Texas Brown Tarantula we found in our garden this afternoon. He needed to be transplanted further from the house and children. He has nice coloring, with a body a bit over an inch long. I didn't try to measure his leg length, as I think putting him briefly in a jar for transport gave him a sour disposition. Imagine that...


He was easy to catch, so of to the forest he went.


Dark Energy Camera Peers Into Cosmic Mystery

47 Tucanae

A composite image of the star cluster 47 Tucanae,
taken by the Dark Energy Camera

We know that the universe is expanding, and that it's doing so faster and faster. But we don't know why the rate of expansion is increasing. Astronomers have dubbed the unknown cause "dark energy," which is a pretty cool name for something we know absolutely nothing about. To shine some light on the mystery, scientists devised a the most powerful digital camera in the world: the Dark Energy Camera, capable of seeing 8 billion light years into space. And after eight years of development, last week the camera captured its first images.

The Dark Energy Camera uses an array of 62 charge-coupled devices—electronic instruments used to capture digital pictures—to form images of the objects in its line of sight, which include 300 million galaxies. Scientists plan to survey these galaxies over the next five years, gathering lots of data that will help us better understand just what dark energy is. But first, they must test this powerful instrument—by taking lots of pretty pictures, such as the above image of star cluster 47 Tucanae, 16,700 light years from Earth.


Original Page: http://feedproxy.google.com/~r/DiscoverBlogs/~3/4PwTSgQjW7k/

300,000,000 galaxies to survey. That sounds like a bit more than a full-time job to me. How do I apply?

Friday, September 14, 2012

Doing the Math - Volume and Conversions

http://resource.rockyview.ab.ca/rvlc/math8/M8U4%20Prisms%20and%20Cylinders/M8U4%20Prisms%20PIcs/65552.jpg

I'm looking at a rainwater collection system we have and wanted to see how much water we could store from tanks of a specific size, but I had to look up the formula for the volume of a cylinder:

V = ∏ × r² × h

So, for a tank with a radius of 7.5' and a height of 15', the equation would be:

V = 3.1416 × 7.5² ×15 = 2,650.725 cubic feet

And to convert cubic feet to gallons, we use the following formula, where one cubic feet is equal to 7.48 gallons:

2,650.725 cu ft × 7.48 cu ft/gallon = 19,827423 gallons

That's more than I had estimated, but it's still a pretty big tank. Now, if we could only get the consistent rainfall in central Texas to keep one full...

http://msnbcmedia2.msn.com/j/MSNBC/Components/Photo/_new/111122_texas-drought.grid-8x2.jpg

Friday, September 7, 2012

Breast-Feeding in Infancy May Shield Adults from Depression

Adults with depression were less likely to have been breast-fed as infants, compared with their non-depressed counterparts, a new study finds.

Maybe getting to play with boobs at an early age reduces likelihood of adult depression? I could have told them that without the trouble of a study...


Original Page: http://feedproxy.google.com/~r/Livesciencecom/~3/3YeuHAd8iTE/23033-breast-feeding-depression.html

Thursday, September 6, 2012

NASA’s Kepler Telescope Finds Planet Orbiting Two Stars

Look toward Cygnus and Lyra, and you're looking toward the giant gaseous planet Kepler 16b, which has been nicknamed Tatooine after the Star Wars films. While outside of the Goldilocks zone and uninhabitable, sci-fi becomes pure science in this first direct discovery of such a solar system structure.


From double sunrise to double sunset the show goes on, always changing.


Sometimes the orange sun rises first. Sometimes it is the red one, although they are never far apart in the sky and you can see them moving around each other, casting double shadows across the firmament and periodically crossing right in front of each other.
Such is life, if it were possible, on the latest addition to the pantheon of weird planets now known to exist outside the bounds of our own solar system. It is the first planet, astronomers say, that has been definitely shown to be orbiting two stars at once, circling the pair — which themselves orbit each other tightly — at a distance of some 65 million miles.
A team of astronomers using NASA’s Kepler planet-hunting spacecraft announced the discovery on Thursday in a paper published online in the journal Science, in a talk at a conference in Jackson Hole, Wyo., and in a news conference at NASA’s Ames Research Laboratory in Mountain View, Calif., Kepler’s headquarters.
The official name of the new planet is Kepler 16b, but astronomers are already referring to it informally as Tatooine, after the home planet of Luke and Anakin Skywalker in the George Lucas “Star Wars” movies, which also had two suns.

More: NASA’s Kepler Telescope Finds Planet Orbiting Two Stars - NYTimes.com

Wednesday, September 5, 2012

Looking at Lyra

Hello, Lyra. You're always right there when I look up, waiting for me.