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Trou au Natron volcano

Earth

Nomad’s land: Journey into the rugged heart of the Sahara

The mountainous Tibesti holds clues to a verdant past – but terrain and politics have kept scientists out. Exclusive photos show what geologists found this year

Features

A tunnel in the Large Hadron Collider

Earth

Huge newfound deposit of helium will keep MRI scanners running

News

the power station in iceland where the project is being carried out.

Earth

CO₂ injected deep underground turns to rock – and stays there

News

Map of Mars's methane

Life

Spongy minerals could explain why Mars gives off methane burps

News

oil

Earth

The Oracle of Oil: The man who predicted peak oil

Culture

A thermal image coloured red, yellow and green, with a blue channel running through it

Space

Mars was once devastated by giant 50-metre tsunamis

News

A spectacular landscape of cliffs with a waterfall plunging down to a crater and rocky pinnacles in the background

Earth

Inside the lost cave world of the Amazon's tepui mountains

News

solar system

Earth

How two tiny dots defy the history of life and the solar system

Features

White-headed Capuchin Monkey in Costa Rica

Life

21-million-year-old fossil is North America's first monkey

News

The crater atop Mount Paektu

Earth

Waking supervolcano makes North Korea and West join forces

Rare example of collaboration with isolationist regime's researchers helps reveal secrets of one of the world’s largest volcanoes

News

Earth

Little mountains of toothpaste highlight the plight of the Alps

Regulars

Earth

First life may have been forged in icy seas on a freezing Earth

News

Earth

Earth's rarest minerals could hint at life on other planets

News

Earth

Secret Sahara reveals fairytale formations and ancient lakes

News