The science behind why the Earth will spin just a little bit faster on July 9, July 22, and August 5, this year.

The coming week will see the gas giant Saturn return to the Northern Hemisphere's late night sky, after spending the last few ...

If we're to land humans on Mars in the coming decades, we'll have to know what challenges await them when they get there.

The moon's near and far sides exhibit striking asymmetry—from topography and crustal thickness to volcanic activity—yet the ...

Astronomers have spotted centimeter-sized “pebbles” swirling around two infant stars 450 light-years away, revealing the raw ...

In the past two years, without much notice, solar power has begun to truly transform the world’s energy system.