Twitter Weekly Updates for 2011-05-01

The two Voyager spacecraft have almost left the solar system: http://t.co/kpHbzGt # Let's try this URL for the Voyager story: http://t.co/jf8u0sR # Powered by Twitter Tools Share on Facebook

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May 1, 2011 Tags: tweets, Twitter Posted in: Uncategorized No Comments

Let’s try this URL for the Voy…

Let’s try this URL for the Voyager story: http://t.co/jf8u0sR Share on Facebook

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April 28, 2011 Tags: tweets, Twitter Posted in: Uncategorized No Comments

The two Voyager spacecraft hav…

The two Voyager spacecraft have almost left the solar system: http://t.co/kpHbzGt Share on Facebook

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April 28, 2011 Tags: tweets, Twitter Posted in: Uncategorized No Comments

Twitter Weekly Updates for 2011-03-27

Sounds like we may have lost an old friend. The Spirit mars rover hasn't communicated in over a year:( # Powered by Twitter Tools Share on Facebook

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March 27, 2011 Tags: tweets, Twitter Posted in: Uncategorized No Comments

Sounds like we may have lost a…

Sounds like we may have lost an old friend. The Spirit mars rover hasn’t communicated in over a year:( Share on Facebook

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March 22, 2011 Tags: tweets, Twitter Posted in: Uncategorized No Comments

Twitter Weekly Updates for 2011-02-20

Go Stardust, find Deep Impact's crater! # Finished watching Watson's first Jeopardy match. Impressive! Still makes some silly mistakes, though. # Stardust is spot on with very little maneuvering! # Powered by Twitter Tools Share on Facebook

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February 20, 2011 Tags: tweets, Twitter Posted in: Uncategorized No Comments

Stardust is spot on with very …

Stardust is spot on with very little maneuvering! Share on Facebook

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February 14, 2011 Tags: tweets, Twitter Posted in: Uncategorized No Comments

Finished watching Watson’s fir…

Finished watching Watson’s first Jeopardy match. Impressive! Still makes some silly mistakes, though. Share on Facebook

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February 14, 2011 Tags: tweets, Twitter Posted in: Uncategorized No Comments

Go Stardust, find Deep Impact’…

Go Stardust, find Deep Impact’s crater! Share on Facebook

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February 14, 2011 Tags: tweets, Twitter Posted in: Uncategorized No Comments

Twitter Weekly Updates for 2011-02-13

Looks like the Sounder train is maxed on the Tues commute. Can transit systems handle a low-carbon future? # Neat new toy at my house. The aero garden http://www.aerogrow.com/ . Fresh veggies in the winter! Energy cost? Don't know yet… # If the aero garden light is an energy pig I can always convert it [...]

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February 13, 2011 Tags: tweets, Twitter Posted in: Uncategorized No Comments

NASA Image of the Day

Remnant of a Supernova

Vital clues about the devastating ends to the lives of massive stars can be found by studying the aftermath of their explosions. In its more than twelve years of science operations, NASA's Chandra X-ray Observatory has studied many of these supernova remnants sprinkled across the galaxy. The latest example of this important investigation is Chandra's new image of the supernova remnant known as G350.1-0.3. This stellar debris field is located some 14,700 light years from the Earth toward the center of the Milky Way. Evidence from Chandra and from ESA's XMM-Newton telescope suggest that a compact object within G350.1+0.3 may be the dense core of the star that exploded. The position of this likely neutron star, seen by the arrow pointing to "neutron star" in the inset image, is well away from the center of the X-ray emission. If the supernova explosion occurred near the center of the X-ray emission then the neutron star must have received a powerful kick in the supernova explosion. Data suggest this supernova remnant, as it appears in the image, is 600 and 1,200 years old. If the estimated location of the explosion is correct, this means the neutron star has been moving at a speed of at least 3 million miles per hour since the explosion. Another intriguing aspect of G350.1-0.3 is its unusual shape. Many supernova remnants are nearly circular, but G350.1-0.3 is strikingly asymmetrical as seen in the Chandra data in this image (gold). Infrared data from NASA's Spitzer Space Telescope (light blue) also trace the morphology found by Chandra. Astronomers think that this bizarre shape is due to stellar debris field expanding into a nearby cloud of cold molecular gas. The age of 600-1,200 years puts the explosion that created G350.1-0.3 in the same time frame as other famous supernovas that formed the Crab and SN 1006 supernova remnants. However, it is unlikely that anyone on Earth would have seen the explosion because of the obscuring gas and dust that lies along our line of sight to the remnant. These results appeared in the April 10, 2011 issue of The Astrophysical Journal. Image Credits: X-ray: NASA/CXC/SAO/I. Lovchinsky et al; IR: NASA/JPL-Caltech
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Twitter Weekly Updates for 2011-05-01

Let’s try this URL for the Voy…

The two Voyager spacecraft hav…

Twitter Weekly Updates for 2011-03-27

Sounds like we may have lost a…

Twitter Weekly Updates for 2011-02-20

Stardust is spot on with very …

Finished watching Watson’s fir…

Go Stardust, find Deep Impact’…

Twitter Weekly Updates for 2011-02-13

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