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Forensic science looks at human evolution

The reach of forensic science’s is being extended back from crime scenes into prehistory to help unlock the mysteries of human evolution.

Will I see the northern lights tonight?

Answers to commonly asked questions about seeing one of nature’s wonders: the aurora borealis or northern lights.

Best places to watch 2017 eclipse

Where’s the best place to see the August 21, 2017 eclipse? Here are 10 great viewing spots to gaze upon nature’s grandest spectacle, weather permitting.

Landing on Mars is hard

Mars’ atmospheric pressure is less than 1% that of Earth, so spacecraft come down hard. Europe has been trying for a Mars’ soft landing since 2003. How they plan to succeed.

The circadian rhythm of our microbes

Like most life on Earth, our gut microbes have their own circadian rhythm. Disrupting that daily routine can be bad – and keeping it in balance can be good – for whole body.

What’s the hottest Earth has ever been?

Earth’s hottest periods occurred before humans existed. Those ancient climates would have been like nothing our species has ever seen.

Signs of climate change at Arctic tree line

Near the Arctic Circle, in northern Alaska, is where forests give way to tundra. Researchers are looking at how the warming climate might affect the ecology of this northern boundary.

Climate change affecting all life on Earth

A new analysis of hundreds of studies says that almost every aspect of life on Earth has been affected by climate change … and that’s not good news for humans.

What happens if the sun disappears?

Some things that would happen here on Earth if our giant source of heat and light were to vanish from the sky, and how long it would take.

Team solves mystery of London killer fog

A fog blanketed London in December 1952, killing as many as 12,000 people. Its exact cause and nature puzzled researchers for decades … until now.