A newly discovered distant mini-Neptune planet may possess its own atmosphere, ocean, or a combination of the two, even if they don't last for long.

A newly discovered distant mini-Neptune planet may possess its own atmosphere, ocean, or a combination of the two, even if they don't last for long. The extrasolar planet, or exoplanet, designated ...

A good mini-Neptune to study. Sub-Neptunes, like GJ 1214b, are the most common type of exoplanet discovered to date. They ...

This artist's concept depicts the planet GJ 1214 b, a "mini-Neptune" with what is likely a steamy, hazy atmosphere. NASA/JPL-Caltech/R. Hurt (IPAC) ...

Although both kinds are larger than Earth and smaller than Neptune, super-Earths can be as much as 1.75 times the size of our home planet, and mini Neptunes are double to quadruple the size of ...

Astronomers pointed the James Webb Space Telescope at a common kind of planet that's bigger than Earth but smaller than Neptune. What they saw wasn't what they expected.

Mini-Neptunes have relatively cooler surface temperatures of around 300 degrees Celsius. Artist’s impression of Cheops, ESA’s Characterising Exoplanet Satellite, in orbit above Earth.

To test the previous hypothesis that LHS 1140 b is a mini-Neptune, the researchers created a 3D global climate model, or GCM. This used complex math to explore different combinations of factors ...

Mini-Neptune planets are defined as smaller than Neptune, with Enaiposha even smaller. They are relatively straightforward to study because of the thin gaseous layers typically found on these planets.

Mini-Neptunes and super-Earths may have a lot more in common than just being superlatives. Four gaseous exoplanets, each a bit smaller than Neptune, seem to be evolving into super-Earths, rocky ...

Researchers discovered mini-Neptunes around four red dwarfs using observations from a global network of ground-based telescopes and the TESS space telescope. These four mini-Neptunes are close to ...

A newly discovered distant mini-Neptune planet may possess its own atmosphere, ocean, or a combination of the two, even if they don't last for long. The extrasolar planet, or exoplanet, designated ...