With Spurr rumbling near Anchorage, let's look at some of the largest eruptions in the most volcanically active state of the ...

Astronomers have confirmed the existence of four planets orbiting a star less than 6 light-years away with help from some of ...

They flattened forests, left massive craters and even killed the dinosaurs. Learn all about Earth’s hugest asteroid strikes.

Trump's "emergency" decrees aren't just unconstitutional. They're dangerous to all of us. Congress should undo the law ...

The Blue Ghost spacecraft, named for a species of firefly, took eclipse chasing to new heights. Not only did it see the Earth block the Sun from an unexplored location on the Moon, but the lander fell ...

Mount Spurr near Anchorage has been showing signs of unrest for a year. Now scientists think it's creeping closer to an ...