Cave explorers from Oman have become the first people to fully explore the infamous 'Well of Hell' sinkhole in Yemen.
New astronaut and satellite images of an active volcano on the island of La Palma reveal the frightening beauty of the eruption, as well as its dangerous proximity to humans.
California firefighters have wrapped the bases of the world's largest trees in fire-resistant aluminum blankets to protect them from a wildfire that is raging nearby.
Hours of survey work have added an additional 8 miles to the passageways at Mammoth Cave National Park in Kentucky
Scotland's giant ice sheet has been recreated over Dundee in a stunning video that looks like the Wall from "Game of Thrones."
A new study shows that strict caps need to be placed on fossil fuel extraction to avoid the worst impacts of climate change.
The epic storm that swept across the eastern United States this week hit New Jersey so hard that satellites saw the damage from space.
The largest piece of Martian rock on Earth, weighing around 32 pounds, has gone on display for the first time, at a museum in Maine.
The devastating wildfires are closing in on South Lake Tahoe resort, causing thousands of people to flee.
In July, a group of scientists accidentally found themselves on a tiny island in northern Greenland made up of mounds of silt and gravel. It turned out to be an unknown island.
Humanity is feeling the effects of climate change around the world, but could climate change make humans go extinct?
Hurricane Ida, an "extremely dangerous" Category 4 hurricane, made landfall near Port Fourchon, Louisiana, at 11:55 a.m. local time on Sunday.