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New studies reveal the diversity of early human populations and help pin down when we left Africa.
This short video puts modern extinctions in context by comparing them with Earth’s 5 previous mass extinctions.
Mass and energy are interchangeable.
Why does time flow inexorably toward the future? A Berkeley physicist proposes that time is expanding because space is expanding.
Neptune is the planet discovered with mathematics.
Autumn is connected in Chinese thought with the direction west, considered to be the direction of dreams and visions.
Meet Michael Faraday, the man behind the electric motor and theory of electromagnetism.
There were more than a dozen wildfires burning in California, as of September 20.
The secret life of urban rats.
After a rapid assessment, scientists have concluded that climate change increased chances of the August record rains in Louisiana by at least 40%.
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.
National Weather Service in Tallahassee reported that Hermine made landfall east of St. Marks, near Tallahassee, early Friday morning as a Category 1 hurricane.
No injuries in Thursday’s explosion on a SpaceX launch pad at Cape Canaveral. But Facebook’s planned satellite is no more.
A strong signal from a sunlike star sparked speculation this week that we might – at last – have heard from an alien civilization. Now astronomers say … no.
NASA TV will broadcast live coverage on Thursday of a 6.5-hour spacewalk by 2 astronauts aboard ISS. Coverage will start at 6:30 a.m. EDT (1030 UTC). The spacewalk will begin about 8 a.m. EDT (1200 UTC).
It means Age of Humans. A scientific working group – at an international meeting of geologists – just recommended including it in the Geologic Time Scale.
Lie on the beach, and your body is bombarded by light from our sun, and from beyond our galaxy.
Seeing animals in clouds, or a face in the moon, are examples of pareidolia. Look here for photos to test your own ability to see things that aren’t there.
Live coverage Friday of cargo ship’s departure from International Space Station. Begins at 5:45 a.m. EDT (9:45 UTC).
A series of 6 newspaper articles in 1835 about the discovery of life on the moon (including bat-men and unicorns), supposedly made by famous astronomer.
Can you find the Big Dipper?