sub-Neptune

A Super-Earth (and Possible Earth-Sized) Exoplanet Found in the Habitable Zone

Astronomers have found a new Super-Earth orbiting an M-dwarf (red dwarf) star about 137 light-years away. The planet is named…

5 months ago

A Planetary System With Six Sub-Neptunes Locked in Perfect Resonance

Researchers using TESS and Cheops data found a system with six sub-Neptune-sized planets, all orbiting in direct resonance with each…

7 months ago

JWST Looks at the Atmosphere of a Stormy, Steamy Mini-Neptune

Just because there's no Mini-Neptune in our Solar System doesn't mean they're not common. They appear to be widespread throughout…

1 year ago

Astronomers still scratching their heads over population of ocean-world exoplanets

In a recent study submitted to The Astrophysical Journal Letters, an international team of researchers led by the University of…

1 year ago

Could Life Exist in the Atmosphere of a sub-Neptune Planet?

Life could thrive in the atmosphere of warm gas planets, but only if they are seeded by asteroids.

3 years ago

Astronomers Have Found the Perfect Exoplanet to Study Another World’s Atmosphere

TESS (Transiting Exoplanet Survey Satellite) has found a new planet, and the discovery of this sub-Neptune exoplanet has scientists excited…

3 years ago

Heard of Mini-Neptunes and gas-Dwarfs? Here's a new one: sub-Earths

A new study suggests that planets smaller than Earth form much later than large planets, which could point to a…

4 years ago

A Strange Planet has been Found that’s Smaller than Neptune But 50% More Massive

Astronomers have found another strange exoplanet in a distant solar system. This one's an oddball because its size is intermediate…

4 years ago

TESS Finds its Third Planet, a sub-Neptune with a 36-Day Orbit

After only three months of operation, NASA's TESS (Transiting Exoplanet Survey Satellite) spacecraft is delivering on its mission to find…

5 years ago