A mission will deliver rock and soil from Mars to laboratories on Earth in the 2030s. Mars Sample Return (MSR) is led by NASA ...

Some of the unusual rocks carry stories about water on Mars. One has hints of long-gone microbes. All tell of a dynamic, complex planet.

I pick out North America’s celestial highlights for the week ahead (which also apply to mid-northern latitudes in the ...

That’s Purgatory Chasm State Reservation in Sutton, Massachusetts for you – nature’s version of finding a twenty in your ...