A tiny meteorite found in Antarctica doesn’t match any asteroid or comet we know of. Instead, it must have come from a mystery parent body that’s full of water

It’s been 180 years since Charles Wilkes voyaged to the Antarctic continent and his journey has never been more relevant

Over the past quarter-century, changes in Antarctic sea-ice cover have had profound impacts on life on the ocean floor.

The 5,100 sq km behemoth which broke away from Antarctica in 2017 drops its own large chunk of ice.

UK scientists provide a new estimate for the amount of space rock falling to Earth each year.

Colin O’Brady took on the elements, a relentless rival and weeks of isolation as he walked solo and unassisted across the southernmost continent

Having trekked hundreds of miles into Antarctica in late 2018, American Colin O’Brady reached a memorable landmark: the south pole. It was only a waypoint on the way to O’Brady’s pursuit of a record – the first-ever unaided, unsupported solo crossing of the continent. Yet when he made it to “due south”, it was time for an impromptu celebration. He did a handstand, posing as if he was holding up Earth.

“I was at the south pole, the bottom of the world,” O’Brady tells the Guardian. “It was a moment of riding high. My emotions were on top of me … I’m thankful I let myself experience that positive moment.”

Related: ‘I’m absolutely elated. It’s a miracle we made it,’ says polar hero Louis Rudd

Over the past quarter-century, changes in Antarctic sea-ice cover have had profound impacts on life on the ocean floor.

New satellite photos from NASA's Earth Observatory show ice on the cap of Eagle Island has almost disappeared after less than 10 days of extreme heat.

Researchers melt an ice core taken from Antarctica 10 years ago and find dozens of microplastic particles, including polyethylene used to make plastic bags.

Scientists hope the technology that filmed it can make fishing more sustainable.

The robot was part of a bigger mapping project that reveals the overall volume of ice in Antarctica, not just the ice cover.

It's either billions of dollars in polar engineering, a rapid cut in emissions now, or an all-of-the-above strategy.

By analyzing a 364-meter ice core, researchers have been able to go back in time and track the freezing and melting cycles of Antarctica's peninsula.

Scientists will be able to easier monitor the population of penguins, thanks to a high-tech solar-powered remote camera setup.

A gigatonne of ice here, a gigatonne of ice there... Soon enough we're talking about a meaningful quantity!

Two steps forward, one step back for Japan. The rest of the world has moved on from whaling, why couldn't they do too?

We don't hear about the ozone layer as much as we used to anymore, but that doesn't mean that the problem has been solved.

This looks a bit like the Hoth rebel station in Return of the Jedi...

After ten years of work, the Antarctic Heritage Trust has done an amazing job of restoring and preserving.

Another signs that the poles are warming fast.

The 10,000 year-old ice shelf is half the size of Rhode Island; its collapse will add greatly to global sea level rise.

New discovery points to troubling signs for the West Antarctic Ice Sheet, the collapse of which would prove catastrophic.

The Greenpeace ship Arctic Sunrise is on a 3-month Antarctic expedition, supporting an international proposal for the world’s largest protected area.

Wind on the snow dunes of the Ross Ice Shelf causes a near-constant hum that is as beautiful as it is haunting.

In support of Greenpeace's Antarctic campaign, this may be the prettiest video I've ever watched – and the cause couldn't be more important.

Video impression Ross Sea Cruise