News tagged with asteroid belt

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Dawn approaches asteroid Vesta

After three and a half years years of thrusting silently through the void, NASA's Dawn spacecraft is on the threshold of a new world. It's deep in the asteroid belt, less than 4 months from giant asteroid ...

Apr 08, 2011
5 / 5 (6) 3 | with audio podcast

Can WISE find the hypothetical 'Tyche'?

(PhysOrg.com) -- In November 2010, the scientific journal Icarus published a paper by astrophysicists John Matese and Daniel Whitmire, who proposed the existence of a binary companion to our sun, larger than ...

Feb 22, 2011
4.6 / 5 (14) 16 | with audio podcast

The Edges of the Solar System

(PhysOrg.com) -- The solar system does not end abruptly past the planets. Beyond the orbit of Neptune, the outermost planet (it orbits the sun at a distance of 30 AU, where one AU is the average distance of ...

May 07, 2010
4.5 / 5 (24) 6 | with audio podcast

How Capt. Kirk Changed the World

"Standard orbit, Mr. Sulu." Captain Kirk barks out the order with such confidence. He knows the USS Enterprise can slip in and out of planetary orbits with ease. But it's only easy in the realm of science ...

May 05, 2010
4.6 / 5 (21) 10 | with audio podcast

Wisconsin Fireball Caught On Tape

(PhysOrg.com) -- A rooftop webcam at the University of Wisconsin-Madison captured the final seconds of a fireball's Wednesday, April 14 descent into the atmosphere. A fireball is a meteor, or "shooting star," ...

Apr 16, 2010
4.7 / 5 (15) 8 | with audio podcast