Cosmic ray hunter installed on space station

The $2 billion Alpha Magnetic Spectrometer particle detector was mounted outside the International Space Station on…

Lonely planet guide: Planets that have no stars

Astronomers on Wednesday said they had found a previously inconceivable phenomenon: planets that do not appear…

U.S. astronaut corps evolves

Still hoping for that job as an astronaut, even as the last days of the space…

Space shuttle Endeavour gets green light for May 16 launch

The space shuttle Endeavour got a green light Monday to launch on 8:56 a.m. EDT on…

Scientists surprised by solar wind data retrieved from Genesis mission

The 2004 crash-landing of a NASA capsule into the deserts of Utah had mission scientists fearing…

NASA marks 50th anniversary of manned US space flight

The United States space program was down and out when Alan Shepard climbed inside a one-man…

NASA’s Dawn probe closes in on giant asteroid

The Dawn space probe is closing in on its first target, the massive asteroid Vesta, almost…

Lunar eclipse turns moon blood red

The longest lunar eclipse in more than a decade turned the moon blood red on Thursday,…

Blasts point to new kind of supernova

Astronomers on Wednesday reported that six ultrabright flashes detected in deep space were ancient exploding stars…

Shuttle Endeavour leaves International Space Station

The U.S. space shuttle Endeavour undocked from the International Space Station and headed back to Earth…