Webb Detects Extremely Small Main Belt Asteroid

An asteroid roughly the size of Rome’s Colosseum – between 300 to 650 feet (100 to 200 meters) in length – has been detected by an international team of European astronomers using NASA’s James Webb Space Telescope. Their project used data from the calibration of the Mid-InfraRed Instrument (MIRI), in which the team serendipitously detected an interloping asteroid. The object is likely the…
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