By comparing those fingerprints to 20 different molecules that they would potentially expect to observe in the atmosphere, ...

K2-18b, an exoplanet 120 light-years away, may be the best hope to confirm that life exists beyond Earth. Here's what to know ...

U.S. team of researchers detected signs of two chemicals in the planet's atmosphere long considered to be "biosignatures" ...

The discovery was made on a massive exoplanet known as K2-18b that for years has captivated scientists searching for life ...

Near a planet far, far away astronomers have found traces of chemicals that on Earth are only produced by living beings.