Topic: Smithsonian Astrophysical Observatory
NASA and the Air Force are working together to develop plans to prepare for future meteor strikes like the one in Russia earlier this month.
Using imaging of the galaxy M87, astronomers have for the first time measured the closest stable orbit within which matter can circle a black hole. They found that this innermost orbit measures 750 times the distance from the Earth to the sun.
Discovered by an Australian astronomer last September, Comet McNaught, will soon be visible to early risers (and those who stay up all night).
06/08/2010 08:01 pm
07/23/2009 01:00 am