"Detecting an exomoon would be quite extraordinary, and because of Io, we know that a volcanic exomoon is possible." ...
New research done at NASA's Jet Propulsion Laboratory reveals potential signs of a rocky, volcanic moon orbiting an exoplanet ...
But a new NASA study may have found a clue that one is orbiting a planet some 635 light-years from Earth. The inference comes ...
Scientists are pretty sure there's a vast hidden ocean at Europa, a Jupiter moon, making the exploration one of the best bets ...