Visit ancient Mars—a surprisingly temperate planet where snow or rain falls from the sky, and rivers rush down valleys to ...

Skygazers in the northern region of the US and Canada might catch a glimpse of the Northern Lights as soon as tonight and ...

From the aurora-lit skies of Canada’s newest dark sky park to the tiny railway town near one of Canada’s tallest waterfalls, ...

Residents of several Northern U.S. states could have the opportunity to see the dazzling northern lights this week. Here's ...

Death Valley is the hottest, driest and lowest national park in the US – and arguably the most visually arresting.

I desired dragons with a profound desire,” fantasy writer J.R.R. Tolkien once said about his childhood imagination, ...

A collision between electrically charged particles from the sun and gases in Earth’s atmosphere produces a series of minuscule flashes that appear like moving lights in the sky. The charged ...