International Space Station Commander Dan Burbank captured spectacular imagery of Comet Lovejoy as seen from about 240 miles above the Earth's horizon on Wednesday, Dec....
Halley's Comet or Comet Halley (officially designated 1P/Halley) is the most famous of the periodic comets, and is visible from Earth every 75 to 76...
From JPL. Comets are important because they represent the leftover bits and pieces from the outer solar system formation process, which took place four and...
To extract samples from wily comets, which have just a millionth of Earth's gravitational pull, a harpoon- or ballista-style device may be the best option....
Visit science.nasa.gov for more. Europe's Rosetta spacecraft is en route to intercept a comet-- and to make history. In 2014, Rosetta will enter orbit around...
