Life could have the time and energy to arise and prosper on Earth-like worlds in the rapidly shrinking "Goldilocks zones" ...

Astronomers are ready to search for the fingerprints of life in faraway planetary atmospheres. But first, they need to know ...

Astronomers have discovered that sulfur may be a key to helping us narrow down our search for life on other planets. It's not that sulfur is a great indication that a planet is inhabited. Instead, ...

A quartet of small, rocky exoplanets likely circle Barnard's Star, around 6 billion light-years from Earth, putting them in ...

Astronomers have discovered that sulfur dioxide may help in identifying uninhabitable planets. Large amounts of sulfur ...

The James Webb Space Telescope is unlikely to detect biosignatures—atmospheric gases produced by living organisms— on nearby planets. Similarly, the upcoming Habitable Worlds Observatory will ...

A new set of data released by NASA's Kepler mission catalogs 219 newfound alien planet candidates. According to NASA, 10 of the new worlds appear to be rocky in the habitable zones of their stars ...

A paper published in 2023 spurred discussion about whether life exists on an exoplanet named K2-18b. Two years later, the ...

Scientists have identified HD 20794 d, a super-Earth in the habitable zone of its star, just 19.7 light-years away. Its proximity and brightness make it an excellent candidate for future atmospheric ...