Quantcast
Last updated on April 21, 2014 at 9:27 EDT

Latest James Wray Stories

Martian Geology More Diverse Than Thought
2013-11-18 13:23:57

Brett Smith for redOrbit.com - Your Universe Online For years, scientists have thought of Mars as being made up of just one kind of rock – a very simplistic planet compared to the diverse geology of Earth. However, a new study in the journal Nature Geoscience suggests there may be granite on Mars and puts forward a theory for how it could have formed there. "We're providing the most compelling evidence to date that Mars has granitic rocks," said study author James Wray, an...

6d4888a5318105f318aa772c426d86901
2011-03-08 14:13:35

Rocks on Mars dug from far underground by crater-blasting impacts are providing glimpses of one possible way Mars' atmosphere has become much less dense than it used to be. At several places where cratering has exposed material from depths of about 5 kilometers (3 miles) or more beneath the surface, observations by a mineral-mapping instrument on NASA's Mars Reconnaissance Orbiter indicate carbonate minerals. These are not the first detections of carbonates on Mars. However, compared to...