Ken Croswell
Ken Croswell has a Ph.D. in astronomy from Harvard University and is the author of eight books, including The Alchemy of the Heavens: Searching for Meaning in the Milky Way and The Lives of Stars.
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All Stories by Ken Croswell
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Astronomy
Molecular oxygen has been spotted beyond the Milky Way for the first time
Astronomers have detected molecular oxygen in another galaxy for the first time. The discovery is only the third sighting beyond our solar system.