For decades, the search for alien life has revolved around a narrow ring around stars where liquid water could exist on a planet’s surface. That “habitable zone” remains important, but astronomers are ...

When astronomers search for planets that could host liquid water on their surface, they start by looking at a star's habitable zone. Water is a key ingredient for life, and on a planet too close to ...

Astronomers have recently detected potential signs of microbial life on the exoplanet K2-18b, an ocean-covered world located ...

Exoplanets are planets outside Earth's solar system. In 1995, a gas giant named 51 Pegasi b, which orbits a star similar to Earth's sun, etched its name in history as the first exoplanet ever ...

The exoplanet LHS 3844b (left) is 1.3 times the mass of Earth and orbits the star LHS 3844 (right). Discovered in 2018 by NASA’s Transiting Exoplanet Satellite Survey, LHS 3844b is located 48.6 ...