WorldWide Telescope (WWT) enables your computer to function as a virtual telescope, bringing together imagery from the best ground and space-based telescopes in the world.

Write an essay on the theme: "THE NATURE OF TIME."

The HiRISE camera, one of the instruments on the Mars Reconnaissance Orbiter, has been sending back high-resolution images of Mars since late 2006. On this site, you can help us identify landforms in these images.

The European Space Agency has developed a system which would allow television satelites to be reused for satelite radio after they reach the end of their working lives. Reusing existing satelites, rather than launching new ones, will cost less money and avoid the environmental impact of new launches.

The Planetary Society is conducting a competition to design a mission to rendezvous with and "tag" a near-Earth asteroid.

University specialists are demonstrating what meteorites look like on the ground and reaping the benefit when members of the public discover more.

Mexican President Vicente Fox has inaugurated a giant telescope that could help scientists uncover clues about the creation of the universe.

N.S. signs private launch facility deal Space station flights planned by 2009

Burt Rutan talks with Space.com about the next step in private space craft.

New images from the Cassini spacecraft reveal Saturn's largest moon, Titan, to be the only body in our solar system other than Earth with lakes on its surface.

MIT engineers and scientist colleagues have a new vision for the future of Mars exploration: a swarm of probes, each the size of a baseball, spreading out across the planet in every direction.

Tourists to the International Space Station (ISS) now have the option of adding a 90-minute spacewalk to their trips for an extra $15 million.

A giant crater made by a meteorite impact millions of years ago has been discovered in Egypt's western desert.

An experimental spacecraft bankrolled by real estate magnate Robert Bigelow successfully inflated in orbit Wednesday, testing a technology that could be used to fulfill his dream of building a commercial space station.

Comet 73P is continuing its glorious disintegration as it flies by Earth ? the comet is now in at least 58 visible pieces. Amateur observers should be able to see the brightest sections of the comet ? full name Comet 73P/Schwassmann-Wachmann 3 ? near the constellation Cygnus with a small telescope or a pair of binoculars.

Earlier this year, astronomers reported that a second "red spot" - a giant storm - had appeared on Jupiter. Already famous for having a large red spot that is a storm that has been raging for at least 400 years, Jupiter has a treat in store for planet watchers this July. Red Spot Jr. is sneaking up on the bigger storm.

Apparently the UK is one of the few European countries that does not participate in any manned spaceflight programme. It's time for that to change.

A whole new class of mini-moons have been discovered lurking inside Saturn's rings. These tiny moons are about 100 metres (300 feet) across, and there could be as many as 10 million in total in the ring system.