npr:MESSENGER, the space probe that discovered water on...

npr:

MESSENGER, the space probe that discovered water on Mercury and has been circling the planet for four years, will take a swan dive at the end of the month in hopes of discovering something about weathering on the surface.

According to Space.com, “the probe’s observations have helped scientists construct the best-ever maps of the planet, and MESSENGER confirmed that carbon-containing organic compounds and water ice exist inside the permanently shadowed craters near Mercury’s poles.”

But gro...