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The Daily Cosmos or Interesting Facts about the Universe

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The Daily Cosmos or Interesting Facts about the Universe

Cosmology
Astrophysics
Astronomy

Location: #science
Members: 58
Latest Activity: 11 hours ago

 

Cosmology - Astrophysics - Astronomy

 

Hubble Wallpaper - Awesome Hubble Images

Discussion Forum

Big Bangers' Imaginations Supply Their Story's Only Support.

Started by May the Big Bang RIP. Last reply by May the Big Bang RIP Jul 23, 2017. 6 Replies

'Hot Jupiter'

Started by Mrs.B. Last reply by Mrs.B Apr 9, 2016. 7 Replies

NASA's Solomon's Choice.

Started by Davy Oct 3, 2013. 0 Replies

This is Science at Work.

Started by Davy. Last reply by Davy Aug 15, 2013. 1 Reply

Starts With A Bang

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Comment by Michel on July 6, 2011 at 5:32pm

@A - Stunning!

I like how the ship lights streaking at the horizon give little an idea of the scale of what we are looking at.

Comment by Adriana on July 6, 2011 at 4:55pm

Ocean Sky from Alex Cherney on Vimeo.


An amateur astronomer from Australia created this stunning time-lapse video of the night sky over the ocean. It shows clouds streaming across the sky, star-spangled heavens and the oscillations of the tide. It took Alex Cherney of Victoria, Australia a year to compile the 30 hours of exposure. In May, Cherney took the overall prize at the STARMUS astrophotography competition for this video.

Hat tip to http://www.wired.com/wiredscience/2011/07/time-lapse-night-sky/.
Comment by Doone has Fremdschämen on July 6, 2011 at 4:47pm

From Starts with a Bang

 

But those grand filaments? The collections of galaxies in great lines across space? Those are even larger features. The largest ever discovered, in fact. The greatest one -- in size -- that we've ever seen? The Sloan Great Wall, about a billion light-years across, below.

Fig-5.jpeg

(Image credit: Mario Juric and J. Richard Gott.)

This thing is so big that it isn't even gravitationally bound to itself all the way across! That's right! Over time, this object will fragment into many smaller clusters, as dark energy 

 

Comment by Michel on June 24, 2011 at 10:47pm
Giant asteroid to 'narrowly miss' Earth

 


A newly discovered asteroid the size of an office block will narrowly miss the Earth on Monday - coming 23 times closer than the moon.

 

By Josie Ensor6:00AM BST 24 Jun 2011

The space rock will reach within 11,000 miles of the surface and give off a light bright enough to be seen through a small telescope, experts said today.

It was only spotted on Wednesday by a robotic telescope in New Mexico that scans the skies for such hazards. An alert was then put out yesterday by the International Astronomical Union's Minor Planet Center in Massachusetts.
The find was confirmed by Peter Birtwhistle, who has discovered dozens of asteroids from his own UK observatory, with a photo taken from Great Shefford in Berkshire.

It will be daylight in the UK when the asteroid, which has been named 2011 MD, makes its close encounter over the southern hemisphere.

But astronomers in other parts of the world, such as South America, will be able to watch it brighten and fade rapidly as it speeds through the starry background.

http://www.telegraph.co.uk/science/space/8595514/Giant-asteroid-to-...

------------------------------------------------

That's a really close call!

It was discovered this Wednesday...

Had it been on target, we'd have had a weekend to make amends with existence.

Comment by Michel on June 23, 2011 at 12:47pm
Comment by Michel on June 23, 2011 at 12:25pm
Comment by Michel on June 20, 2011 at 10:33am
Green Ring Fit for a Superhero: Spitzer Space Telescope Spies Powerful Light of Giant 'O' Stars



ScienceDaily (June 19, 2011) — 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 by astronomers, this region of hot gas and glowing dust can be found in the murky clouds encircled by the tail of the constellation Scorpius. The green 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 carved out the bubble, though they blend in with the other stars when viewed in infrared.

Rings like this are so common in Spitzer's observations that astronomers have even enlisted the help of the public to help find and catalog them all. Anyone interested in joining the search as a citizen scientist can visit "The Milky Way Project," part of the "Zooniverse" of public astronomy projects, at http://www.milkywayproject.org/

MORE...
Comment by Doone has Fremdschämen on June 19, 2011 at 9:15pm
Comment by Doone has Fremdschämen on June 14, 2011 at 10:42pm

Source: YouTube

Just a few days ago the Sun lit off an amazing eruption on its surface. While these kinds of things happen all the time, this event was particularly breathtaking. Above is a video from The Sun Today that offers some nice narration of the event. Below, also from The Sun Today, is a concise description of what you are seeing,

The solar flare occurs at the very beginning of the event and is just the brief bright flash. The flare itself is not that big, or unusual. There is a loop of dark material that rises and expands; this is the filament eruption. You can see that the material rises up, and then falls back down over a wide area of the Sun, almost half the diameter of the Sun; it is unusual to see the material splash back down over such a wide area. The material is falling back down along invisible magnetic field lines, and is not simply falling straight down due to gravity.

Stars are violent beasts.

By the way, I love the idea of a website called The Sun Today. Perhaps we should get daily new from all the planets: The Neptune News; The Jovian Afternoon Post, Mars Morning News http://www.npr.org/blogs/13.7/2011/06/13/137140129/the-sun-explodes...

Comment by Michel on June 14, 2011 at 12:25pm

@A - Yes it is hypnotic.

I'm very tempted to add music to it.

 
 
 

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