From colliding galaxies to supermassive black holes, we take a look at some of the strangest sights in the universe

When we imagine planets, we usually picture them circling a fiery star like our Sun. But new evidence has now been found of a type of planetary system that instead forms around cold planets that float

TRAPPIST-1 is a red dwarf star located about ...

A look at some of the thousands of astronomical objects visible in Hubble’s historic photograph

How our knowledge of these worlds beyond the Solar System has exploded in the last three decades

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