Upon further investigation, it seems that Gliese 581d may be the only one of the two actually in the habitable zone, and its ...

Warmer climates than Earth’s could accelerate life’s development, potentially increasing the number of planets with more ...

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

Plato, the European Space Agency's terrestrial planet hunter spacecraft, is seen after having 24 of its 26 cameras installed.

Why doesn’t our solar system have sub-Neptune exoplanets and what can they teach us about planetary formation and evolution?

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

"The algorithm achieves precision values of up to 0.99, which means that 99% of the systems identified by the machine-learning model have at least one Earth-like planet." ...

Comets that have hit Earth have been a mixed bag. Early in Earth's history, during the solar system's chaotic beginning, they ...

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 ...

Earth is a rather special place, quite unlike the other planets in the solar system. It’s nestled at the perfect distance from the sun to allow our water to remain liquid and for life to ...