Sleep Helps Us Learn
We sleep so that our brain can repair and refresh itself.
Rights Activists Criticize Trial of 17 Reporters in Turkey
All 17 reporters have been detained for months.
Re-Growing Human Body Parts
Researchers say they have a lot more work to do.
Ikea Designers Live in Mars Research Center to Get Ideas
Mars Desert Research Station in Utah
Why Can’t Some Planes Fly in Hot Weather?
Heat waves appear across the tarmac at Sky Harbor International Airport.
Economist Says Key to Success — Finishing College in 4 Years
Columbia University graduation
Many Places Feeling the Heat Ahead of First Day of Summer
Temperatures climb to near-record highs.
Fruits, Vegetables Can Lower Blood Pressure
Evidence suggests potassium may have an effect on hypertension.
Colorado Considering Banning Smartphones for Children Under 13
Colorado would become the first state to have such a ban.
Old Fossils Give Humans New History
“Our species is much older than we thought.”