News tagged with asteroid belt

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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

Solar system 'Outback' explored with new telescope

In the outer reaches of our solar system lies a mysterious region far more remote and difficult to explore than the Australian outback. It remains the only part of our solar system not visited by spacecraft. ...

Jan 12, 2011
5 / 5 (4) 1

Engineers Assess Dawn's Reaction Wheel

(PhysOrg.com) -- Engineers are studying the reaction wheels on NASA's Dawn spacecraft after automatic sensors detected excess friction building up in one of them and powered it off early on the morning of ...

Jun 30, 2010
4 / 5 (3) 0

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