In a 40-minute plea at the White House to save the US space shuttle, John Glenn said that relying on the Russians to get US astronauts into space was a mistake. Why did President Obama turn him down?
Gabrielle Giffords' husband, who was training for an April space shuttle mission when she was shot, is expected to make a decision about that mission by the middle of next month. Mark Kelly is currently with his wife Gabrielle Giffords in Houston, where she is undergoing rehabilitation.
A mockup of the James Webb Space Telescope, billed as the successor to the Hubble Space Telescope, took center stage at New York's World Science Festival.
A life-size model of a huge new space observatory described as the successor to the Hubble Space Telescope is on display at the World Science Festival at New York City's Battery Park.
Lawmakers and former astronauts have lambasted President Obama for scrapping a moon mission. Thursday, Obama will defend his vision for NASA space exploration through human spaceflight.
Under Obama's 2011 budget, NASA would cancel plans to put astronauts back on the moon by 2020 and hand off space-taxi services to private companies.
Retired General Charles Bolden gets high praise from those who've flown with him.