New simulations suggest Jupiter holds far more water than once thought, reshaping ideas about how the largest planet formed.

Jeremy Hansen will be the first non-American to fly to the moon — and will make Canada only the second country in the world ...

The volcanic hot spot is larger than Lake Superior, spewing eruptions six times the total energy of all of the world's power plants.

After full moon, the terminator returns, but this time on the moon's opposite side, where it marks the line of advancing ...

Skygazers who look up at the moon tonight may be able to spot Saturn below it. Here's when and how to spot the conjunction in ...

Skygazers who look up at the moon tonight may be able to spot Saturn below it. Here's when and how to spot the conjunction.

Skygazers who look up at the moon tonight may be able to spot Saturn below it. Here's when and how to spot the conjunction in ...

That would make it thousands of times more massive than any moon orbiting a solar system plane  — so massive it could make ...

On Earth, deep-sea vents may have given rise to the planet’s first life. But nothing of the sort seems to be happening at the ...

Florida is home to 3 dark sky locations that may offer the clearest views of a planetary conjunction between Saturn and the ...

Europa might not be the best place to look for alien life in the solar system after all. A new study modeling what the floor of the Jupiter moon's hidden ocean is like concluded that tectonic activity ...