Asteroid to pass Earth close to the Moon on Halloween weekend

An asteroid estimated to be 470 metres wide
will pass close to Earth on Halloween weekend, giving scientists an
excellent opportunity for study but not quite coming close enough to be
seen with the naked eye.

 Asteroid 2015 TB145 was discovered on October 10, 2015, by a Hawaiian telescope that is part of
NASA’s Near-Earth Object Observation (NEOO) Program.
NEOO is a project to identify and track all near-Earth objects (NEOs) closer than
30 million miles, or about 48 million kilometres.
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