Right now a comet is hurtling through our solar system at more than 137,000 miles per hour. But it is not just this interstellar object’s speed that has earthly astronomers glued to their telescopes.

A newly discovered object speeding through our solar system is sparking excitement among astronomers because it’s not from around here. Believed to be a comet, the object is only the third celestial ...

Just when Comet ISON came to life, the moon crept back into the morning sky to rob the comet, at least temporarily, of its splendor. With a full moon on tap for tomorrow, expect the comet to get ...

3I/ATLAS, earlier known as A11pI3Z, is only the third interstellar visitor to be discovered passing through our corner of the galaxy. By Kenneth Chang For only the third time, astronomers have found ...

In a reversal that would make a comic book writer blush, scientists seem ready to resurrect Comet ISON after its untimely Thanksgiving demise. Over the holidays, NASA brought leading astronomers ...

A potentially bright comet will be visible  in November and December. Russian amateur astronomers Vitali Nevski and Artyom Novichonok found the comet in images taken by the International Scientific ...

Comet ISON, once optimistically called the comet of the century, is dead, the victim of a way-too-close brush with the sun. It was barely a year old. The comet, which excited astronomers and the media ...