Astronomers have discovered the darkest known planet. The exoplanet, known as TrES-2b, reflects less than 1 per cent of light, which makes it darker than any other planet or moon. The discovery, ...
How dark is dark within the solar system? We suppose black holes, by their very nature, are pretty dark. But high on the list of astronomical objects that don't reflect much light is a new contender: ...
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