Incoming NEOThree newly-discovered space rocks are zipping past our planet this week. The largest, 2013 RT73, is a 49-meter object that passed within 8 LD on Monday, September 16. The closest, 2013 RZ53, is a much smaller 3-meter rock that will slip within the distance to the Moon on Wednesday, September 18! None are bright enough to be seen w/o a large telescope, and none pose any real threat, but each reminds us that we do have frequent, potentially hazardous visitors to our neighborhood.

Read this Planetary Society assessment to learn more about the threat of near-Earth objects.

Check out the Earth Impact Database to see maps of the many confirmed impacts to our planet.

Visit Geology.com to visually explore dozens of the largest impact sites.

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