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Molecular clocks track human evolution

How do scientists figure out when evolutionary events happened? It turns out our DNA is a kind of molecular clock, keeping time via genetic changes.

Super halos around very young galaxies

Astronomers directly observed a pair of Milky-Way-like galaxies, seen when the universe was 8% of its current age. They were excited to find the young galaxies surrounded by huge halos.

Bodies freed from gravity’s grip

Life on Earth is used to gravity. So what happens to our cells and tissues in space?

Real-life Hoth is disappearing

Hardangerjøkulen, the Norwegian ice cap better known to Star Wars fans as the ice planet Hoth, is melting and may disappear by 2100.

Best places to watch 2017 eclipse

Here are 10 great viewing spots to watch the August 21, 2017 total solar eclipse, weather permitting.

What our teeth say about us

How anthropologists gather clues about how our ancestors lived from their teeth. Plus what will our teeth tell future anthropologists about us?

Galapagos tortoise back from the brink

Galapagos giant tortoises, once on the brink of extinction, have made a comeback.

20 years after Dolly

Everything you always wanted to know about the Dolly the cloned sheep and what came next, from a biomedical researcher and cloning expert.

Magnetic pole reversal ahead?

What’s magnetic north would become magnetic south. Is Earth headed to a pole reversal? A look at the archaeological record in southern Africa provides clues.

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.