The molten exoplanet, larger than sub-Neptune, could be a new class of planet.

A civilization capable of interstellar travel may also be one that has moved beyond conquest, excess and ecological ...

Astronomers have identified a strange new kind of exoplanet that challenges how scientists classify worlds beyond our Solar System. The planet, L 98-59 d, appears to contain a vast ocean of molten ...

Could ancient humans really have built the pyramids without extraterrestrial help? Or do such questions reveal more about modern anxieties than the past itself?

Scientists have uncovered a hellish “lava world” where temperatures soar to a blistering 2,700 degrees Fahrenheit — hot enough to melt rock into a churning ocean of magma and fill the air with the ...

Oxygen has been the most important gas in our search for life among the cosmos thus far. On Earth, we have it in abundance ...

Debunking alien claims matters, but so does telling richer, more compelling stories about how humans shaped their own past.

A skier at a Washington ski area narrowly avoided disaster Friday after falling and becoming trapped upside down in deep snow.

Worf is one of the most popular characters in Star Trek, and for good reason: appearing in three shows and four movies as his ...

In a breakthrough that sounds ripped straight from a Ridley Scott flick, researchers in Germany have managed to freeze brain ...

A heightened avalanche risk in the central Cascades is drawing new attention just days after a skier was partially buried on ...