Astrobiologist Joshua Sebree of the University of Northern Iowa suggests that South Dakota's Wind Cave exhibits chemical ...

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

A study suggests planets in white dwarf habitable zones could sustain life for billions of years through key biological ...

The search for habitable planets has taken a leap forward with new space telescopes probing exoplanet atmospheres for life.

In an ideal world, researchers could look for life on exoplanets by sending spacecraft ... consuming and expensive to send spacecraft to other planets in the solar system — let alone beyond.

The findings provide strong evidence that four giant exoplanets 130 light-years from Earth formed much like Jupiter and ...

The gas giants outside our solar system are not capable of hosting extraterrestrial life, but do offer clues in a lingering ...

On this week's episode: big bird intelligence, astronauts should jump, sheep and human history, and a tiny great ape.

Astronomers have confirmed the existence of four planets orbiting a star less than 6 light-years away with help from some of ...

Aaron Paul, Eiza González and director Flying Lotus spoke with UPI about their sci-fi thriller "Ash," in theaters Friday.

One is that life’s building blocks were delivered on or in meteorites. The other is that those building blocks came together spontaneously via geochemistry in our planet’s early environment.