Denise Chow

Astronomers have discovered an alien solar system containing six planets — including a sunlike star — with five of the newfound worlds orbiting in a close-knit configuration.

NASA has developed inventive ways to distill clean drinking water for astronauts from everything from ambient station humidity to the crew's own urine.

An unmanned Japanese cargo spaceship safely arrived at the International Space Station this morning (Jan. 27), successfully hauling several tons of provisions for the station and its crewmembers.

In last night’s State of the Union address, President Obama echoed the sentiments of the U.S.-Soviet Space Race, calling today’s challenges, “the Apollo projects of our time.”

An overview of the space shuttle Challenger accident as we look back on the tragedy that occurred 25 years ago this week.

Two Russian spacewalkers ventured outside of the International Space Station to install a television camera and prepare the station for future assembly.

NASA has assigned a veteran spacewalker to replace injured astronaut Tim Kopra on the crew of the space shuttle Discovery, with just over five weeks remaining before the mission's Feb. 24 launch.

NASA astronaut Scott Kelly spoke from the International Space Station about sister-in-law Gabrielle Giffords' recovery and how his family is coping with the tragedy.

The camera in your cell phone may seem trivial, but one in every three cell phone cameras is built using technology invented for NASA spacecraft.

When people first began using cordless, handheld vacuums to get at dust and crumbs around the house, few probably saw a connection between their household Hoover and outer space.

NASA has named a backup space shuttle commander for astronaut Mark Kelly, husband of Rep. Gabrielle Giffords who was shot on Jan. 8.

Some space experts hoping the NASA most pressing goals for the future of human spaceflight look beyond the moon.

NASA is hoping to launch the space shuttle Discovery on its final voyage no earlier than Feb. 24, after months of delays due to cracked fuel tank supports.

The shooting of Representative Gabrielle Giffords and several others in a violent rampage at a public event held Jan. 8 in Tucson is likely to have effects that ripple all the way into space.

Water on the moon most likely came from comets that pelted the lunar surface after its formation, a new study suggests.

Astronaut Mark Kelly, the husband of Arizona Congresswoman Gabrielle Giffords, who was among 20 victims of a horrific shooting in Tucson on Saturday, says "there is little that we can do but pray."

NASA has delayed the space shuttle Discovery's launch yet again to allow more fuel tank repairs.

A ten-year-old amateur astronomer became the youngest person to have ever discovered a stellar explosion, after detecting a supernova in a galaxy within the constellation of Camelopardalis.

With spring on Mars in full swing, NASA is taking advantage of the Martian season's ever-longer periods of daylight to try to reawaken its stuck rover, Spirit, after months of silence.

An American auction house is putting a bounty of space artifacts and memorabilia up for grabs to high bidders looking to get their hands on a piece of the final frontier.