Scientists discovered that methyl halides, a gas produced by microbes, could be a biosignature for life on distant planets.

Astronomers have made an extraordinary discovery—for the first time, scientists have directly observed two alien planets ...

Whether aliens could detect our modern civilization depends on what signs they’re looking for—and, crucially, their distance ...

Even the icy planets in our solar system such as Neptune, Uranus or Jupiter's moon Europa, might have harboured plastic ice ...