Stunning panorama from Opportunity rover on Mars marks 11th year

A panoramic view of the desert world next door, from one of the highest elevations reached by the Mars rover Opportunity in its 11 years on the Red Planet.

Asteroid that flew past Earth on Monday has a moon!

Radar images of asteroid 2004 BL86 confirm the primary asteroid is 1,100 feet (325 meters) across with a small moon 230 feet (70 meters) across.

Big asteroid swept close on January 26

Asteroid 2004 BL86 came closer than any known asteroid this large until 2027. Information and photos of the asteroid, plus links to more.

The intriguing crack in Rosetta’s comet, and more

Scientists publish a slew of science results from the Rosetta comet mission. Among the most fascinating ... a crack in the comet's neck! Plus dust and jets, the mysterious double-lobed shape, and more.

Seasons are changing on Rosetta’s comet

Two photos from the Rosetta spacecraft – one from last November, and one from a few days ago – show a comet’s seasons changing.

Is our Milky Way a wormhole?

In theory, our home galaxy Milky Way could be a wormhole - a galactic transport system - says a team of astrophysicists.

Friday night’s rare triple shadow transit of Jupiter

Three moon shadows at once on Jupiter Friday night! It won't happen again for U.S. observers until the year 2032. You can also watch online.

Venus vortex!

This ghostly puff of smoke is actually a huge mass of swirling gas and cloud at planet Venus’ south pole, as seen by ESA’s Venus Express spacecraft.

Ceres’ mysterious white spot seen in new Dawn image

Dawn spacecraft now closing in on dwarf planet Ceres. Image is for navigation purposes; next one due late January. And what is that white spot, anyway?

Video: Fly through the largest picture ever taken

Fly-through video of the largest image ever taken, of the Andromeda galaxy, nearest spiral galaxy to our Milky Way. Prepare to feel small!