The research is mounting up that we might not be alone in this big wide world. So what's the likelihood that aliens are out ...

Billions of years ago, another planet smashed into Earth. An event of this epicness could have created our Moon. It also ...

From Viking to Perseverance, scientists have spent decades chasing chemical hints that could point to life beyond Earth.

From mudstones on Mars to strange gases in exoplanet atmospheres, tentative evidence for extraterrestrial life is starting to ...

Following speculation that comets could have been alien spacecrafts, more and more experts in the field are convinced that ...

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