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Lunar dynamo’s lifetime extended by at least 1 billion years

New evidence from ancient lunar rocks suggests that an active dynamo once churned within the molten metallic core of the moon, generating a magnetic...

Hot rocks, not warm atmosphere, led to relatively recent water-carved valleys...

Present-day Mars is a frozen desert, colder and more arid than Antarctica, and scientists are fairly sure it's been that way for at least...

High-pressure experiments solve meteorite mystery

With high-pressure experiments at DESY's X-ray light source PETRA III and other facilities, a research team around Leonid Dubrovinsky from the University of Bayreuth...

Rover findings indicate stratified lake on ancient Mars

A long-lasting lake on ancient Mars provided stable environmental conditions that differed significantly from one part of the lake to another, according to a...

‘Tiny clocks’ crystallize understanding of meteorite crashes

Almost two billion years ago, a 10-kilometre-wide chunk of space slammed down into rock near what is now the city of Sudbury. Now, scientists...

Rivers on three worlds tell different tales

The environment on Titan, Saturn's largest moon, may seem surprisingly familiar: Clouds condense and rain down on the surface, feeding rivers that flow into...

Comets contributed to Earth’s atmosphere, says study of 3 billion-year-old minerals

Scientists have revealed that some of Earth's atmosphere may have been brought to the planet by comets billions of years ago. The mystery of how...

10 Biggest Impact Craters on Earth

Vredefort Crater Asteroid impact date: Estimated 2 billion years ago Location: Free State, South Africa Specs: Also known as the Vredefort Dome, the Vredefort crater has an...

Ancient meteorite impact sparked long-lived volcanic eruptions on Earth

Meteorite impacts can produce more than craters on Earth -- they can also spark volcanic activity that shapes its surface and climate by bringing...

New study ranks hazardous asteroid effects from least to most destructive

If an asteroid struck Earth, which of its effects -- scorching heat, flying debris, towering tsunamis -- would claim the most lives? A new...

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