Astronomy, Space | featured news

It may not be possible to travel back in time, but seeing stars and galaxies as they looked millions or even billions of years ago is no problem thanks to telescopes, the closest thing we have to time machines.

NASA's Cassini spacecraft buzzed Titan last year, coming close enough to taste the Saturnian moon's atmosphere. The data acquired has implications for our understanding of life throughout the galaxy, as well as Earth's own past.

A meteorite
the size of a huge watermelon on Mars is revealing new clues to the planet's
environment.

A tool bag lost by a spacewalking astronaut last year met its fiery demise in Earth's atmosphere Monday after months circling ever closer to the planet.

The shuttle Endeavour closed out a grueling space station assembly mission with a smooth Florida landing on Friday.

Four galaxies are involved in this pile-up 280 million light years from Earth.

Astronomers have found the strongest evidence yet for an ocean beneath the icy shell of Saturn's Enceladus, suggesting it could join the exclusive club of watery moons in our solar system.

A distant "sun" residing in the constellation Aquila has become the smallest star known to host a planet.

Fueling has started on space shuttle Atlantis for its mission to repair the Hubble Space Telescope.

Floating debris from a satellite forced the crew of the international space station to retreat to a safety capsule Thursday, according to a NASA news release.