The European Space Agency (ESA)’s CHEOPS satellite has discovered four new exoplanets — and they are a hard-to-detect type called a mini-Neptune. These planets are notable because they are the ...

Astronomers have discovered four worlds unlike anything in our own solar system that provide a "missing link" between Earth twins and Neptune-like planets, they say. Scientists are interested in mini ...

Exoplanets come in shapes and sizes that are not found in our solar system. These include small gaseous planets called mini-Neptunes and rocky planets several times Earth’s mass called super-Earths.

"We want to comprehend the behaviors of these planets, given that those slightly larger than Earth and smaller than Neptune are the most common in the galaxy." When you purchase through links on our ...

Of all the potential super-Earths—terrestrial exoplanets more massive than Earth—out there, an exoplanet orbiting a star only 40 light-years away from us in the constellation Cetus might be the most ...

Planet formation used to sound straightforward: dust clumps into rocks, rocks grow into worlds, and the rest is detail. A ...

Artist depiction of the mini-Neptune K2-18 b. Credit: NASA, CSA, ESA, J. Olmstead (STScI), N. Madhusudhan. Credit: Cambridge University Exoplanet K2-18b is garnering a lot of attention. James Webb ...

The origin of super-Earths and sub-Neptunes has been revealed in a system of four young planets that are dramatically losing ...

The "mini-Neptune" exoplanet found 48 light-years away doesn't resemble anything in our own solar system. When you purchase through links on our site, we may earn an affiliate commission. Here’s how ...

NASA's prolific Kepler space telescope, which shut its powerful eye nearly five years ago, continued finding exoplanets even while taking its final breaths. A team of astrophysicists and citizen ...

A strange planet that's stymied astronomers for years has an "unusually shiny atmosphere" and could be home to large amounts of water vapor, scientists said in a study published Wednesday in the ...

An enigmatic, cloud-enshrouded planet that has puzzled astronomers for years turns out to be less hot than expected – and surprisingly shiny. That's what the James Webb Space Telescope revealed when ...