The curious minds at What If explore what it would mean for life on Earth if every planet in our solar system were habitable.

Stars don’t just form planets—they may also re-supply their disks with gas, reshaping how and where planets emerge.

We tend to think of habitability in terms of individual planets and their potential to host life. But barring outliers like ...

NASA's Curiosity rover has found iron-rich carbonates on Mars, offering new clues about the planet's ancient climate and ...

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

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

Observations by the James Webb space telescope find possible biological activity on a giant planet 124 light-years from Earth ...

NASA researchers have discovered evidence of tectonic activity on Venus by re-examining decades-old radar data. The findings ...

Astronomers have detected the most promising signs yet of a possible biosignature outside the solar system, although they ...

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

“It’s the first time humanity has seen potential biosignatures on a habitable planet.” The study was published Wednesday in the Astrophysical Journal Letters. Other researchers called it an ...