"In our solar system, the most massive moon is Ganymede, which is still extremely small compared to what we are inferring ...

Fellow exomoon hunter René Heller of the Max Planck Institute for Solar System Research in Göttingen, Germany, is less skeptical on that front. He argues that a less extreme inward migration probably ...

A new analysis of a peculiar metallic cloud surrounding the exoplanet WASP-49 b provides further evidence that it may have been birthed by a volcanic satellite, which may become the first officially ...

NASA scientists believe they have found indirect evidence of a moon orbiting an exoplanet with similarities to Jupiter's moon Io, pictured here. Credit: NASA / JPL-Caltech / SwRI / MSSS Scientists ...

For the first time, astronomers have discovered what could be an exomoon, a moon outside our solar system. The so-called exomoon, which is estimated to be the size of Neptune, was found in orbit ...

A new study published as a pre-peer-reviewed paper on arXiv and accepted for publication in Astronomy & Astrophysics suggests ...

Scientists have spotted a few thousand exoplanets, or planets orbiting stars other than our sun. Exomoons are another story. There have been some potential exomoons, but nothing definitive. Now, a ...

"Detecting an exomoon would be quite extraordinary, and because of Io, we know that a volcanic exomoon is possible." When you purchase through links on our site, we may earn an affiliate commission.

Astronomers have so far identified over 1,800 exoplanets orbiting other stars. And the Kepler space telescope (Opens in a new window)has identified several thousand more possibilities, some of which ...