Space.com

Skywatching Treat: Venus and Jupiter Dance Together This Week Venus and Jupiter have been dancing toward each other in the night sky for months, and they'll finally come together this week in a dazzling show for skywatchers. Beginning tonight (March 12), the two brightest planets in the sky will be so close together that you'll be able to block both of them out with a few fingers held at arm's length. The celestial action peaks Thursday. Read More...

Glow in the Dark Mars Mud Slimy Glow Fun... On our last flight back from Mars, we noticed a weird substance sticking to our "Spaceship of the Imagination" (the name of our ship, naturally). It's sticky, bouncy, stretchy, and glow-y; it definitely behaves in an alien manner. We did the only thing we could think of - we gathered it up, put it in retail packaging, and now we're offering it to you. Behold: Mars Mud. $4.99 $4.25 AFTER COUPON CODE: MARSMUD15

Astronauts Spy Southern Lights and Daybreak from Space An exquisite photo of Earth's horizon taken from the International Space Station reveals the glimmer of daybreak on one side, offset by dazzling auroras over the planet's South Pole region on the other. How a Nuclear Bomb Could Save Earth From an Asteroid A well-placed nuclear explosion could actually save humanity from a big asteroid hurtling toward Earth, just like in the movies, a new study suggests. Best Space Photos of the Week Gallery: Visions of Mars from 'John Carter'