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Desert

Earth

Cold climate may have driven ancient humans鈥� move out of Africa

East Africa became colder and drier around 75,000 years ago, just when modern humans were apparently migrating out of Africa

Ice

Earth

Gel-like ice is the lightest form of water ever discovered

Leaves of various sizes in greenery

Environment

We may finally understand why tropical plants have huge leaves

Melting tundra

Earth

Uninhabitable Earth? In fact, it鈥檚 really hard to fry the planet

Thwaites glacier

Earth

Living with climate change: What’s the worst that can happen?

Space

The hottest planet yet is twice Jupiter鈥檚 size and hot as a star

Laser workbench

Physics

Three-atom molecule cooled to near absolute zero for first time

Melbourne tram

Earth

Big cities warm up during the week as commuters flock in

microscopic metal membrane

Physics

Squeezed light cools tiny drum to coldest temperature ever

Earth

Future air conditioning could work by beaming heat into space

Physicists have achieved record temperature reductions of more than 40 掳C using radiative cooling, which beams heat through the atmosphere

Physics

Space is all the same temperature. Coincidence?

Life

6000 people cram into one pool in China to beat the heat

Earth

Scorchio! Earth’s surface is the hottest it has been in history

Earth

Last days of Earth: Life in 7 billion years AD