Tipping points: Understanding the green Sahara's collapse

Abrupt shifts within complex systems such as the Earth's climate system are extremely hard to predict. Researchers at the Technical University of Munich (TUM) and the Potsdam Institute for Climate Impact Research (PIK) have ...

Could alien solar panels be technosignatures?

If alien technological civilizations exist, they almost certainly use solar energy. Along with wind, it's the cleanest, most accessible form of energy, at least here on Earth. Driven by technological advances and mass production, ...

What is making 2023 likely the hottest year recorded

Human-made climate change is supercharging natural weather phenomena to drive heatwaves roasting Asia, Europe and North America that could make 2023 the hottest year since records began, scientists say.

African migratory birds threatened by hot, dry weather

Africa's migratory birds are threatened by changing weather patterns in the center and east of the continent that have depleted natural water systems and caused a devastating drought.

Scientists find oldest Martian meteorite's original home

Scientists announced Tuesday they had found the crater from which the oldest known Martian meteorite was originally blasted towards Earth, a discovery that could provide clues into how our own planet was formed.

Image: Tenoumer Crater, Mauritania

Deep within the Sahara Desert lies one of the best-preserved craters on Earth. On Asteroid Day, the Copernicus Sentinel-2 mission takes us over the almost-perfectly circular Tenoumer Crater in Mauritania.

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