WASHINGTON (AP) — Scientists now have close-up pictures of a hyperactive comet that seems to be spewing water.

Hartley 2 isn’t the only such comet, but it’s the first to be visited by a spacecraft during a flyby, researchers report in Friday’s edition of the journal Science.

University of Maryland astronomer Michael A’Hearn says when warmed by the sun, dry ice deep in the comet’s body turns to carbon dioxide gas jetting off the comet. The gas drags water ice along with it.

The researchers said the smooth waist of the peanut-shaped comet seems to have been re-deposited from other parts of Hartley 2. The comet both spins around one axis and tumbles around a different axis.

The photos were taken last fall by NASA’s Deep Impact spacecraft.

(Copyright 2011 by The Associated Press. All Rights Reserved.)

  1. somechic says:

    TEEHEHEE; Have the next space shuttle sprinkle some Ritalin on it 🙂

Leave a Reply

Please log in using one of these methods to post your comment:

Google+ photo

You are commenting using your Google+ account. Log Out /  Change )

Twitter picture

You are commenting using your Twitter account. Log Out /  Change )

Facebook photo

You are commenting using your Facebook account. Log Out /  Change )


Connecting to %s

Watch & Listen LIVE