Aug 23 - Fast Magnetic Reversal

August 23 Fast Magnetic Reversal by:

Researchers find fast flip in Earth's magnetic field By studying the magnetic record left behind in earthly rocks, researchers found a magnetic field reversal - where magnetic north became magnetic south - lasting only 2 centuries. Tonight … Moon still near Mars The moon and red planet Mars are the brightest and 3rd-brightest lights in the August night sky. Don't miss them. Why plants don’t get sunburn Plants produce their own chemical sunscreens that protect them from harmful ultraviolet light. Water worlds are likely common Earth is a water world, and a new study suggests there may be many more water worlds out there, including some larger and wetter than our planet.

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Tonight … Moon still near Mars Mars will stay super bright through the end of August. One month from now, in September, Mars will be about half as bright as it is now. Two months from now, in October, Mars will be about one quarter of its present brightness.

Crack! Lightning over the Atlantic John Entwistle captured this image on North Carolina's Outer Banks of "an insane lightning strike lighting up the clouds over the ocean." Thanks, John!  Submit your photo to EarthSky here! Did a friend forward EarthSkyNews to you? Click here to get your own subscription!

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