Last week I told you about NASA's plans to bust'a Alpha Particle X-Ray Spectrometer on a Mars rock. They hit it. Studied it. Results are available.
"This rock is a close match in chemical composition to an unusual but
well-known type of igneous rock found in many volcanic provinces on
Earth," said Edward Stolper of the California Institute of Technology in
Pasadena, who is a Curiosity co-investigator. "With only one Martian
rock of this type, it is difficult to know whether the same processes
were involved, but it is a reasonable place to start thinking about its