Imagine trying to reconstruct the history of a city by studying only its oldest surviving buildings. You can't watch it being built, you can't interview the architects, all you have are the structures ...
The planets are aligning. This Saturday is a rare chance to see several of our closest cosmic neighbors in a single sky. Six planets will assemble themselves for a spectacular “planetary parade” that ...
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NASA telescope spots first alien 'astrosphere' around a sun-like star: Space photo of the week
The first bubble of hot gas seen around another star has been spotted around the "Moth," just 117 light-years away.
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