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EarthSky Voices

Spread of early humans: New findings

New studies reveal the diversity of early human populations and help pin down when we left Africa.

Lifeform of the week: Rats

The secret life of urban rats.

After a year on (simulated) Mars

A week ago, a test crew emerged after living for a year in Mars-like conditions inside a solar-powered dome on the slopes of Hawaii’s Mauna Loa volcano.

Have we been wrong about life’s origin?

For 90 years, science’s favorite explanation for the origin of life has been the “primordial soup”. But recent research adds weight to an alternative idea.

How did humans first reach America?

A new study suggests that the first people to reach America travelled via the Pacific coast rather than through a corridor between two giant ice sheets.

Polar bears’ biggest threat is ice loss

Hunting used to be the biggest threat to polar bear survival. Not anymore.

Parakeet takeover ahead?

"Parakeets are Britain’s fastest growing bird population and are on a trajectory to global domination."

Emirates Mars Mission to launch in 2020

The Emirates Mars Mission - which carries the name Hope - will become the first-ever mission to the Red Planet by any Arab country.

Air conditioning’s big global impact

Higher global temperatures combined with higher global incomes mean more air conditioners. But what do more air conditioners mean?

Shifting identities for traveling neutrinos

MIT researchers show that neutrinos can change between several distinct “flavors” while traveling from a facility near Chicago to a detector in Minnesota.