Samantha StainburnJune 21, 2012 19:46

"It's not that clear because there's no signpost telling you that you're now leaving the solar system, but the evidence is mounting that we're getting really close," Arik Posner, a Voyager program scientist at NASA's headquarters in Washington, DC, told NPR.

Saturn's moon Titan, NASA orbiter finds a lake, marshes of liquid methane

Alexander BesantJune 13, 2012 17:46

Saturn's moon Titan has a methane lake and marshes new images from a NASA spacecraft show.

Shenzhou-9: China to make manned space flight mid-June

News DeskJune 9, 2012 07:04

The crew might include the first Chinese women ever to go into space, according to space agency officials.

Venus Transit 2012: Photos of Venus crossing the Sun

News DeskJune 6, 2012 06:49

Amazing photos of the transit of Venus on June 5-6, which drew stargazers around the world.

Venus Transit 2012: Venus, Earth and Sun align June 5 in rare event (VIDEO)

News DeskJune 5, 2012 09:48

Venus will appear as a tiny black dot moving against the Sun — but don't look at it directly.

NASA gets two spy telescopes as gifts

Alexander BesantJune 4, 2012 15:36

NASA has received two former spy telescopes from the National Reconnaissance Office (NRO), gifts that may help explore the 'dark energy' behind the expansion of the universe.

Samantha StainburnMay 29, 2012 18:11

NASA issues historic preservation guidelines for the moon

The guidelines specify how close future moon visitors should get to debris left behind by previous astronauts.

Enlarge

Astronaut Edwin E. Aldrin, Jr., the lunar module pilot of the first lunar landing mission, stands next to a United States flag July 20, 1969 during an Apollo 11 Extravehicular Activity (EVA) on the surface of the Moon. (NASA/Newsmakers/Courtesy)

Since NASA does not have moon rangers keeping order on the lunar surface, following these guidelines is voluntary, Discovery News reported.

SpaceX Dragon capsule: ISS astronauts unload the world’s first commercial cargo spacecraft (VIDEO)

Samantha StainburnMay 26, 2012 15:38

The Dragon space capsule, designed by Hawthorne, Calif.-based Space Exploration Technologies (SpaceX), docked on Friday.

Samantha StainburnMay 22, 2012 17:29

Jill Tarter, SETI Institute astronomer, retires from job looking for aliens

Tarter was the inspiration for Ellie Arroway, the alien-hunting character played by Jodie Foster in the movie 'Contact.'

Enlarge

Jodie Foster as Ellie Arroway in 'Contact,' a film based on the best-seller by Carl Sagan. (Getty Images)

Astronomer Jill Tarter, the inspiration for Ellie Arroway, the alien-seeking character played by Jodie Foster in the movie "Contact," is stepping down from her job as the director of the Center for SETI (Search for Extraterrestrial Intelligence) Research at the SETI Institute in Mountain View, Calif., Space.com reported.

PHOTOS: 'Ring of fire' solar eclipse

Jessica PhelanMay 21, 2012 07:44

Sky watchers all over the eclipse's path gathered to enjoy the rare sight. It's the first time an annular solar eclipse has been visible from the US since 1994.