You can watch an asteroid zoom safely by Earth in a live webcast today

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Online coverage starts Thursday (March 3) at 10 p.m. EST

You can watch an asteroid zoom safely by Earth in a live webcast today : Read more

 

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Asteroids passing by earth are measured by amateur groups using the parallax and converting to distance. Here is a new report, Amateur Astronomers Team Up to Measure Distance to a Close-passing Asteroid - Sky & Telescope - Sky & Telescope (skyandtelescope.org)