The volcano is 16 miles tall. That’s about triple the height of the tallest mountain on Earth’s surface. All in all, Olympus Mons is about 100 times bigger than the biggest volcano on Earth.

Saguaro cactuses are Arizona's towering icons. However, only one holds the record for being the tallest ever measured. Here's what to know about it.

This false-color satellite photo from 2014 shows the immense heat emanating from lava lakes at the summits of a pair of ...

A false-colour image from a satellite has shown the intense heat coming from a pair of lava lakes that emerged on ...

These birds have evolved to withstand the equatorial sun and shelter in volcanic rocks along a subtropical coastline. After ...

From reproductive rights to climate change to Big Tech, The Independent is on the ... The likelihood of Alaska’s Mount Spurr volcano erupting has decreased - but Alaskans aren’t out of the ...

It takes six hours to get to this remote destination that has almost no phone service, rolling green hills and volcanoes.

Check out 24 of the world’s must unusual landscapes — from the hellish Darvaza Gas Crater in Turkmenistan to the “snow ...

Army veteran Kevin Bittenbender and Marine veteran Kirstie Ennis look to set a world record with a 47.5-mile ...