Martian minerals made by microbes?

Discovery of microbe-made stevensite on Earth raises questions about minerals found on Mars. Also; the failed galaxy shielded by dark matter on a collision course with the Milky Way, and new study shows some parts of the Moon are wetter than others.

Listen to Dr Bob Burne talk about the research on the ABC Star Stuff podcast

Image credit: NASA JPL-Caltech/MSSS