Ask any astronomer, and they will tell you that all of the planets in the Solar System (including those "dwarf…
Do exoplanets have exomoons? It would be extraordinary if they didn't, but as with all things, we don't know until…
For a long time, we wondered if other stars hosted planets like the Sun does. Finally, in the 1990s, we…
Nature doesn't conform to our ideas of neatly-contained categories. Many things in nature blur the lines we try to draw…
Jupiter's Io stands apart from the Solar System's other moons, with its numerous volcanoes and its surface dominated by lava…
Jupiter's ocean moons capture most of our attention because of their potential habitability. But Io, Jupiter's bad-boy volcanic moon, is…
If we could wind the clock back billions of years, we'd see our Solar System the way it used to…
In the early days of spaceflight, just getting a satellite into Earth's orbit was an accomplishment. In our era, landing…
Jupiter's moon Io is the most volcanic world in the Solar System, with over 400 volcanoes. Some of them eject…
Jupiter is the King, Earth is teeming with life, Venus is a weird, spacecraft-crushing hellhole, and now Saturn has the…