News tagged with gravitational field

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The Atmosphere of Io

(PhysOrg.com) -- Io is one of the four moons of Jupiter that Galileo discovered after he turned his new telescope heavenward. They shocked him and his contemporaries because they demonstrated that heavenly ...

Jun 14, 2010
4.8 / 5 (14) 19 | with audio podcast

What are 'mini' black holes?

In films and books black holes capture unwary spaceships and planets, gobble up whole galaxies or offer portals to other parts of the Universe.

Mar 29, 2010
4.6 / 5 (38) 32 | with audio podcast

Phobos flyby success

Mars Express encountered Phobos last night, smoothly skimming past at just 67 km, the closest any manmade object has ever approached Mars' enigmatic moon. The data collected could help unlock the origin of ...

Mar 04, 2010
5 / 5 (10) 4 | with audio podcast

Studying how black holes grow

Black holes are some of the most exotic objects in the universe. They are the final evolutionary stage of giant stars much larger than the sun. When these stars explode, their cores collapse down to the size ...

Dec 17, 2009
5 / 5 (2) 1