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 ...

The exoplanet K2-18b could harbor a massive ocean, but scientists will need to study the planet more to see if it’s really ...

Bold claims of ‘biosignature’ molecules trigger an outpouring of scepticism.

Astronomers have made a detection suggesting biosignatures, or signs of biological activity, on an exoplanet located 124 ...

Further studies are needed to determine whether K2-18b, which orbits a star 120 light-years away, is inhabited, or even ...

Astronomers claim they've found the most promising signs of possible life on a planet outside of our solar system.

Researchers found LUCA, our earliest common ancestor, lived 4.2 billion years ago. It had a complex biology, affecting its ...

Samples drilled by the Curiosity rover on Mars have revealed abundant signs of a carbon cycle that remained hidden from ...