Comet Flying by Earth Observed with Radar and Infrared
Pasadena CA (JPL) Mar 25, 2016
Astronomers were watching when comet P/2016 BA14 flew past Earth on March 22. At the time of its closest approach, the comet was about 2.2 million miles (3.5 million kilometers) away, making it the third closest comet flyby in recorded history (see “A ‘Tail’ of Two Comets”). Radar images from the flyby indicate that the comet is about 3,000 feet (1 kilometer) in diameter.
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