This Day In Astro History

Chandra Image
Chandra X-ray image of Cassiopeia A, the remanent of a star that exploded about 300 years ago.
To the human eye, space appears serene and void. It is neither.  To the "eye" of an X-ray telescope, the universe is totally different – a violent, vibrant, and ever-changing place. Temperatures can reach millions of degrees. Objects are accelerated by gravity to nearly the speed of light and magnetic fields more than a trillion times stronger than the Earth’s cause some stars to crack and tremble. -- NASA

August 26

2003 - Columbia Accident Investigation Board releases its final reports on Space Shuttle Columbia disaster.

1999 - The first calibration images from the world's most powerful X-ray telescope, NASA's Chandra X-ray Observatory are unveiled at a media briefing at NASA Headquarters, 300 E St. SW, Washington, DC.  The images included the spectacular remnants of supernova Cassiopeia A that exploded 300 years ago, a hot gas shell 10 light years across with temperatures of 50 million degrees and a point of light that may be a neutron star or black hole at the center of the stellar explosion. Another image that thrilled observers was the high energy jet of Quasar PKS 0637-752 six billion light years away. Chandra will continue its calibration for a few weeks and then the real science begins!

Black Brant 3 launchCanadian1966 - Black Brant 3 Launched from Fort Churchill.  National Research Council of Canada Test/Aeronomy mission.
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It is my conclusion that human evolution and the motions of matter in space are intrinsically linked. The observation and understanding of the complexity of biological history on Earth cannot be complete without the tandem observation and understanding of a dynamic greater cosmos. - SpaceGene