Astronomers have detected the most promising signs yet of a possible biosignature outside the solar system, although they ...

We tend to think of habitability in terms of individual planets and their potential to host life. But barring outliers like ...

Webb Space Telescope reveals a surprisingly clear atmosphere on planet TOI-421 b, helping scientists understand the evolution ...

NASA's James Webb Space Telescope has found water vapor swirling in the air of a distant, boiling-hot alien planet, a new ...

A planet circling at a sharp 90-degree angle to the orbits of its two host stars has now been confirmed. This discovery ...

Comets that have hit Earth have been a mixed bag. Early in Earth's history, during the solar system's chaotic beginning, they ...

In 1972, a Soviet spacecraft bound for Venus failed to escape Earth’s gravity and got stuck orbiting our planet. Now, 50-odd ...

New views of TOI-421 b by JWST gives insight into how the most common type of planet in the galaxy might form.

In the new study, however, astronomers used the cutting-edge "Keck Planet Finder" (KPF) instrument as the W. M. Keck ...

Astronomer Eliza Kempton said that she had waited her "entire career" to peer into an atmosphere from this mysterious class ...

Webb is helping scientists understand these gassy exoplanets 'in a way that was not possible prior to the telescope’s launch, ...

By comparing those fingerprints to 20 different molecules that they would potentially expect to observe in the atmosphere, ...