The passing of astronaut Sally Ride is occasion to mark the gains women have made in math and science since her historic space flight, and reflect on the challenges that remain.

Yesterday the Russian Soyuz spacecraft launched and is now on its way to the International Space Station. Since retiring their own shuttle program, NASA has been paying Russia millions of dollars to get astronauts into space.

Funding to study our solar system will be cut by 20 percent. That's leaving some space programs in limbo.

The private company SpaceX today launched an unmanned rocket into space this morning, carrying cargo for the international space station.

NASA's budget is scrutinized by Congress, igniting debate over the direction of the space agency.

Mars researchers are meeting with NASA today to figure out if there's a way to pay for future trips to the red planet.

The agency wants to figure out how it would feed astronauts on any future mission to Mars, so it needs people to try to cook and eat astronaut food for four long months.

Will the cost of returning to the moon reap benefits in scientific and technological breakthroughs? Past experience offers a mixed verdict.

The Obama Administration announced yesterday that the U.S. will hold international talks on space junk, that debris left over from human activity in space that poses a risk to satellites, astronauts, and those of here on earth.

Space harpoon? Space harpoon!