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Doomsday Clock is now 89 seconds to midnight, the closest yet to catastrophe
By Stephanie Pappas published
The Bulletin of the Atomic Scientists has moved its Doomsday Clock closer to Armageddon than ever before.

Last ice age quiz: How much do you know about Earth's frosty past?
By Sascha Pare published
How did woolly mammoths survive the last ice age? And how thick was the ice over New York City? Test your knowledge by taking our quiz.

Italy's 'ticking time bomb' plays peek-a-boo through a mysterious hole in the clouds
By Harry Baker published
Earth from space This 2022 satellite photo shows the summit of "one of the world's most dangerous volcanoes," Mount Vesuvius, peering up through a strange gap in the clouds.

'We are creating the fire equivalent of an ice age': Humans have plunged Earth into the 'Pyrocene'
By Stephen Pyne published
Humans have become a geologic force by cooking the planet — using fire on a scale that is altering land, water, air and ecosystems.

How is the ocean melting Antarctica? We're starting to figure it out
By Madelaine Gamble Rosevear, Ben Galton-Fenzi, Bishakhdatta Gayen, Catherine Vreugdenhil published
Antarctica is melting, and crucial details are beginning to come into focus of exactly how it's happening.

Mariana Trench quiz: How deep is your knowledge?
By Christina Hughes published
How much do you know about one of the most mysterious places on Earth?

Earth's elusive 'ignorosphere' could shed new light on auroras
By Tereza Pultarova published
We know very little about some parts of Earth's atmosphere.

Scientists discover pristine ancient forest frozen in time in Rocky Mountains
By K.R. Callaway published
A melting ice patch in the Rocky Mountains uncovered an ancient forest, and these trees have stories to tell about dynamic landscapes and climate change.

Catastrophic tipping point in Greenland reached as crystal blue lakes turn brown, belch out carbon dioxide
By Patrick Pester published
Record heat and rain turned thousands of Greenland lakes brown in 2022 as they hit a tipping point and began emitting carbon dioxide.

Pamukkale: Turkey's 'cotton castle' of white limestone that inspired an ancient cult
By Sascha Pare published
The Pamukkale travertines are limestone slopes and thermal water pools that have attracted visitors since before the days of Ancient Greece, when the spa town of Hierapolis was founded at the top.
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