Astronomers say big cool patches on the Betelgeuse star likely drove its surprise dimming last year.
Tags: astrophysics space astronomy stars
An unseen object is found to be lurking in a double-star system a mere 1,000 light-years from Earth.
Tags: astrophysics astronomy black-holes
Millions of stargazers have been witnessing the unusual constellations made up of the low orbit satellites.
Tags: astronomy spacex elon-musk communications-satellites
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