Google Alert - Science

	Science As-it-happens update ⋅ March 31, 2017
	NEWS
	How Mars lost its atmosphere, and why Earth didn't Washington Post Mars was once wetter and warmer, and very possibly a congenial environment for life as we know it. Today it looks mighty dead, with all due respect. Flag as irrelevant
	April Fools' Day comet will make closest pass to Earth on record USA TODAY It might be streaming by on April Fools' Day, but this comet is no holiday prank. On Saturday, the inelegantly named comet 41P/Tuttle-Giacobini-Kresák will make its closest flyby of Earth since its discovery in 1858. Flag as irrelevant
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