posted on Jan, 19 2011 @ 08:42 AM
A recent storm of small comets that pelted the sun could herald the coming a much bigger icy visitor, astronomers say.
Since its launch in 1995, NASA's Solar and Heliospheric Observatory, or SOHO, orbiter has captured pictures of 2,000 comets as they've flown past
Most of these comets are so-called sungrazers, relatively tiny comets whose orbits bring them so near the sun that they are often vaporized within
hours of discovery. (See a picture of a sungrazer spied in October.)
The sun-watching telescope usually picks up one sungrazer every few days. But between December 13 and 22, SOHO saw more than two dozen sungrazers
appear and disintegrate.
Seeing "25 comets in just ten days, that's unprecedented," Karl Battams, of the United States Naval Research Laboratory in Washington, D.C., said
in a statement. "It was crazy!"
According to Battams and colleagues, the comet swarm could be forerunner fragments from a much larger parent comet that may be headed along a similar
path. And such a large icy body coming so near the sun would result in a spectacular sky show.
The sun-kissing comet Ikeya-Seki, as it appeared in the dawn sky in 1965.