By Will Dunham WASHINGTON (Reuters) -In a potential landmark discovery, scientists using the James Webb Space Telescope have ...

A Southwest Research Institute-led study modeled the chemistry of TOI-270 d, an exoplanet between Earth and Neptune in size, ...

In what may be the most significant clue to alien planet life yet, scientists studying K2-18b have detected two sulfur-based ...

Scientists have potentially made a groundbreaking discovery 124 light-years away, detecting what could be the first signs of ...

An SwRI-led study modeled the chemistry of TOI-270 d, a nearby exoplanet between Earth and Neptune in size, finding evidence ...

Astronomers have discovered a major sign of life — and “the first hints… of an alien world” on a distant planet orbiting ...

Scientists using the James Webb Space Telescope have obtained what they call the strongest signs yet of possible life beyond ...

The photo at left is an enhanced-color image of Neptune from the Hubble Space Telescope. At the right, that image is combined ...

Fresh data from the James Webb Space Telescope provide more evidence for what some consider a biosignature — but debate is ...

The James Webb Space Telescope may have detected life-associated gas in the atmosphere of a far-off planet. The news is being ...

A Southwest Research Institute-led study modeled the chemistry of TOI-270 d, an exoplanet between Earth and Neptune in size, ...

A new study modeled the chemistry of TOI-270 d, an exoplanet between Earth and Neptune in size, finding evidence that it could be a giant rocky planet shrouded in a thick, hot atmosphere. TOI-270 d is ...