EarthSky News - Aug 31 - Asteroid Florence is Coming

August 31 Asteroid Florence is Coming by:

Asteroid Florence is coming Biggest near-Earth object to pass this close since this category of objects was discovered over a century ago. Closest tomorrow, but online viewings start today. Exploring the triggers of cosmic disaster A new study uses data from ESA's Gaia satellite to give the first systematic estimate of how often passing stars nudge comets from the Oort Cloud and send them plunging toward the inner solar system. After Harvey, a fire ant raft in Texas A mass of live fire ants floating on the Texas flood. When is the Harvest Moon in 2017? In 2017, the autumnal equinox for the Northern Hemisphere comes on September 22. Official Harvest Moon is October 5, but the September 5-6 full moon shares the characteristics of a Harvest Moon.

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Tonight … Arc to Arcturus and spike to Spica Notice Jupiter. Find Spica. Then look for the Big Dipper and follow the arc in its handle.

After Harvey, a fire ant raft in Texas Photo by Brant Kelly/Flickr. Submit your photo to EarthSky here!

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