RECENT LOCATIONS

Close
Add a location
Edit your saved locations

Martian spheres puzzle NASA scientists


The small spherical objects are unlike anything scientists have ever seen (Image credit: NASA/JPL-Caltech/Cornell Univ./ USGS/Modesto Junior College).
The small spherical objects are unlike anything scientists have ever seen (Image credit: NASA/JPL-Caltech/Cornell Univ./ USGS/Modesto Junior College).

Staff writers

September 14, 2012 — NASA rover Opportunity has sent back baffling images of the surface of Mars.

NASA's Opportunity rover has sent back a "puzzling" image from Mars.

Small spherical objects -- about 3 mm in diameter -- have been found, concentrated in the "Kirkwood" region of the red planet.

Researchers say the objects are different from Mars "blueberries" -- iron-laden beads that Opportunity has discovered in numerous locations.

"This is one of the most extraordinary pictures from the whole mission," said Opportunity's principal investigator, Steve Squyres, in a statement. "Kirkwood is chock full of a dense accumulation of these small spherical objects. Of course, we immediately thought of the blueberries, but this is something different. We never have seen such a dense accumulation of spherules in a rock outcrop on Mars."

Researchers are calling the find a "geological puzzle."

While there are a few theories about what the mystery spheres might be, it may be some time before scientists come up with a definitive answer.

Sign in or Sign up to submit a comment.




Comments





Take your weather with you, no matter where you go.

Get instant forecasts and alerts, right on your computer.

  • RSS & Data
Add weather updates to your website or RSS reader.