The faraway exoplanet could help provide answers as to why there are hardly any planets with twice the diameter of Earth.

The two exoplanets, or planets outside of our solar system, orbit a star called TOI-1453, which is slightly cooler and ...

Data from the massive telescope also suggests the exoplanet, the name for a planet outside the solar system, may also have a surface covered in water and an atmosphere rich with hydrogen.

Are we alone in the universe? While no one can say for sure, space scientists know where to start looking—exoplanets. An ...

Recent observations made by the James Webb Space Telescope (JWST) at two mid-infrared bands (12.8 and 15 µm), suggest that the exoplanet could either be bare, airless rock like Mercury or shrouded by ...

Scientists using the James Webb Space Telescope (JWST) have delved into the atmosphere of the scorching hot exoplanet LTT 9779 b. "Finding a planet of this size so close to its host star is like ...

Despite many false starts and dead ends over all that time, astronomers announced the first discovery of exoplanets in 1992 ... line in the star’s atmosphere. To a modern astronomer’s eye ...

NASA has discovered a new world, named Gliese 12 b. It is roughly the size of Earth, lies in the habitable zone, and orbits every 12.8 days.

"Molecules like DNA simply cannot accumulate in the atmosphere of an exoplanet in a way that could be identifiable by space-based or ground-based telescopes," Schwieterman told Space.com.

A Hycean exoplanet could have detectable methyl halide gases in its atmosphere that could indicate the presence of life. Credit: Amanda Smith illustration These gases — composed of carbon ...

She theorized that during a transit, starlight filtering through an exoplanet’s atmosphere would produce a spectral fingerprint that could be used to characterize the atmosphere’s chemical ...