Huffpost Science

Gullies On Asteroid Vesta Spotted By NASA's Dawn Spacecraft

Posted: Updated:
NASA's Dawn spacecraft has found mysterious gullies on the giant asteroid Vesta. | NASA

PASADENA, Calif. -- Scientists are puzzling over the discovery of gullies inside young craters on the giant asteroid Vesta.

NASA's Dawn spacecraft spied two types of channels on the crater walls of the second-largest object in the asteroid belt. The first kind – short and straight – were likely carved by dry material flowing down the depression.

But researchers are stumped by the appearance of long and narrow gullies. Such features are sculpted by water on Earth, but how they occurred on Vesta is not yet known.

The new images were released Thursday at a meeting of the American Geophysical Union in San Francisco.

Dawn departed from Vesta in September after a year of study and is headed toward Ceres, the asteroid belt's biggest object. It's scheduled to arrive in 2015.

Related on HuffPost:

Images Of Asteroid Vesta
Share this
Current Slide

Suggest a correction

Around the Web

BBC News - Dawn probe spies possible water-cut gullies on Vesta

What is creating gullies on Vesta?

What is Creating Gullies on Vesta? - NASA Jet Propulsion Laboratory

What is creating gullies on Vesta? - Physorg | e! Science News

Craft spies interesting gullies on asteroid Vesta - News -

Asteroid gullies intrigue scientists