When astronomers first cataloged some of the closest orbiting rocky exoplanets, they wrote them off as bare, airless cinders, ...

Massive continents collide, the Earth’s crust crumbles and is pulled back into the mantle, melts down into magma, and is ...

A massive volcano hidden beneath the Pacific is swelling again, but its predicted eruption never came. Scientists are now ...

James Webb observations show TOI-561b, an ultra-hot rocky exoplanet, has a thick atmosphere that redistributes heat.

The James Webb Space Telescope detected an atmosphere on a lava-covered exoplanet, evidence that small planets close to stars ...

If the theory is proven correct, the consequences could be enormous, spelling a much more risky, explosive future.

A colossal Martian volcano defies everything we know about planetary geology. Hidden clues beneath its frozen summit hint at ...

On some Mars images, Olympus Mons does not look dramatic at first glance. It sits there quietly, a wide pale rise against ...

Fortunately, the twisty murder-mystery wit and clever dialogue that are the hallmarks of creator Rian Johnson’s now trilogy are firmly back after a slightly shaky second installment (the still ...

On the slopes of an Indonesian volcano, rivers of light appear to pour out of the dark, glowing an electric blue that looks ...

A Carnegie-led team of astronomers detected the strongest evidence yet of an atmosphere around a rocky planet beyond our ...

One notable incident came on May 22, 1919, when a barrage of eruptive activity caused a 1,000-kilogram (2,205-pound) block of ...