Northrop Grumman's 'Cygnus XL' cargo spacecraft undocked from the ISS and will make a fiery reentry into Earth's atmosphere.
The powerful emission, known as a gigamaser, was discovered using the MeerKAT radio telescope in South Africa.
A NASA satellite has touched back down on Earth after 14 years in orbit. Van Allen Probe A re-entered on Wednesday, the U.S.
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