Australia's Powerful Fast Radio Burst
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Radio AstronomyCNN
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Science
Long-dead satellite emits strong radio signal, puzzling astronomers | CNN
80% Informative
Astronomers in Australia picked up a strange radio signal in June 2024 .
The signal was so bright that it outshined everything else in the sky.
It came from about 4,500 kilometers ( 2,800 miles ) away from Earth .
The ensuing search for its source has sparked new questions around the problem of debris in Earth ’s orbit.
A less likely cause is the impact of a micrometeorite, a space rock no bigger than 1 millimeter ( 0.039 inches ) in size.
The study illustrates how astronomers must take care to not confuse radio bursts from astrophysical sources with electrostatic discharges.
As more and more satellites go up, this kind of experiment will make it more difficult.
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