From Viking to Perseverance, scientists have spent decades chasing chemical hints that could point to life beyond Earth.

In 1995, a pair of scientists discovered a planet outside our solar system orbiting a solar-type star. Since that finding—which won the scientists a portion of the 2019 Nobel Prize in ...

Scientists have created a three dimensional map of a distant planet's atmosphere for the first time. Using data from the James Webb Space Telescope (JWST) and a technique known as eclipse mapping, ...