Astronomers shed new light on our picture of the early Universe.
On November 7, 2008, 14-year-old Caroline Moore of Warwick, New York, discovered a supernova in the galaxy UGC 12682, making her the youngest person ever to find an exploding star.
The American Astronomical Society's 214th meeting in Pasadena, California, kicked off in earnest on Monday.
The Hubble repair crew carried out their fifth and final spacewalk on Monday, May 18th. On Wednesday they answered reporters' questions about what the job was like.
NASA’s infrared Spitzer Space Telescope finally ran out of its liquid helium coolant and entered its “warm mode” last Friday, May 15th.
After years of anticipation, a Space Shuttle crew lifted off Monday, May 11th, for the much-delayed 11-day mission to service and repair the Hubble Space Telescope.
Scientists crunching data from the January and October 2008 Messenger flybys of Mercury have just announced a flurry of new results.