A Near Earth Object passed close to the Earth on Monday morning. It was the size of a ten story building but it wasn't noticed until the Saturday. It was travelling nearly ten miles a second and came within half the distance of the moon – which is pretty close (a few moments from the kind of close encounter of the noisy kind one hopes can be avoided). It also crosses the path of Venus as it orbits around the sun. Another 33 close approaches of rocks in space are expected during the course of 2017. See http://finance.yahoo.com/news/asteroid-just-flew-earth-two-172000181.html
NEO fly by
10 January 2017Astronomy