3 images of Phobos from Mars Express spacecraft

Three new images of Mars' moon phobos - all taken on January 9, 2011 - are intriguing for entirely different reasons.

Orion Nebula in beautiful new image

Igor Chekalin of Russia selected the data used for this ethereal image of the Orion Nebula, as part of the Hidden Treasures 2010 competition of the European Southern Observatory.

Cats – and other animals – in zero gravity

This vintage U.S. Air Force video shows cats floating in zero gravity. This video appears to be going viral today ...

Space telescope finds that thunderstorms make antimatter

NASA's Fermi Gamma-ray Space Telescope, in orbit around Earth, has discovered that thunderstorms create particles of antimatter.

Largest known black hole could swallow our solar system

The largest of the nearby galaxies, M87, now has the largest known black hole. It contains 6.6 billion times the mass of our sun and could swallow our solar system whole.

Play new NASA game: Extreme Planet Makeover

You can build your own planet, but will it support life?

Super-massive black holes began growing when universe was very young

The most massive black holes began growing at a very fast rate when the universe was only about 1.2 billion years old, according to a new study by astronomers in Tel Aviv.

See the night sky in biggest-ever image

A new image from the Sloan Digital Sky Survey consists of 1.2 trillion pixels and covers a third of the night sky. It captures half a billion individual stars and galaxies.

Hubble Space Telescope finds star formation in crazy green cloud in space

Here's the latest Hubble Space Telescope on the green cloud of gas known as Hanny’s Voorwerp. The cloud now appears to be lit up by the bright light of a nearby quasar, and shows signs of ongoing star formation.

1st solar eclipse of 2011 in photos

An amazing collection of images of the partial solar eclipse of Jan. 4, 2011 can be found at The Big Picture. The eclipse was seen in Earth's eastern hemisphere.