The mysterious interstellar object traveling through our solar system has been spotted acting like no other comet ever seen before, revealing its alien origins. Scientists from Michigan State ...

The so-called 'planetesimal belts' are filled with tiny millimeter-sized particles created by collisions between comets. When you purchase through links on our site, we may earn an affiliate ...

Life could have arrived on Earth in ancient collisions with rocks from other solar systems (Image: Hubble/Princeton) Life could have arrived on Earth in rocks from other solar systems, scientists ...

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The universe is at it again; scientists have been baffled by a discovery that turns all the knowledge they have on planetary systems on its head. Scientists have discovered an alien solar system ...

Life may not get blasted off any of the known "super-Earth" worlds as readily as it can from our planet, scientists find. The discovery suggests that any intelligent aliens that develop on such ...