World View will begin accepting reservations Wednesday to travel to the edge of space.
You haven't lived till you've celebrated on the International Space Station. Two astronauts tell us how.
NASA releases a stunning image of Saturn that show its remarkable rings and makes Earth look small.
The next frontier in science is finding something that we know exists, but can’t see, smell or touch. That's dark matter.
Check out this neat trick from astronaut Karen Nyberg on the international space station.
The Dutch non-profit that's offering one-way tickets for a highly improbable mission to colonize Mars reaches a milestone.
A talking, humanoid robot heads to space, the Mars rover Curiosity's year on Mars and the new Doctor.
A new look at the Andromeda galaxy, and the new promotional Web site for "X-Men: Days Of Future Past".
He’s sifting through the data to find alien spacecraft passing in front of distant stars.
Here are five stories we're following today, including the Cassini photograph this evening.