A Dark Earth with a Red Sprite
There is something very unusual in this picture of the Earth — can you find it? A fleeting […]
Science
Star Streams and the Whale Galaxy
NGC 4631 is a spiral galaxy found only 25 million light-years away, toward the well-trained northern constellation Canes […]
After Poaching Deaths, Elephants Rearrange Families
By SINDYA N. BHANOO Following the death of a matriarch, female offspring work to establish social ties with […]
Herbig Haro 24
This might look like a double-bladed lightsaber, but these two cosmic jets actually beam outward from a newborn […]
Thigh Bone Suggests Ancient and Modern Humans Overlapped
By SINDYA N. BHANOO Discovered in China, the bone is about 14,000 years old, yet resembles one from […]
In Developing World, Cancer Is a Very Different Disease
By GEORGE JOHNSON In the West, cancer often afflicts those who are affluent and older. In poorer countries, […]
Mapping Saturn’s Moons
By JONATHAN CORUM NASA’s Cassini spacecraft will make its final flyby of Saturn’s moon Enceladus on Saturday. Published: […]
Geminids of the South
Earth’s annual Geminid meteor shower did not disappoint, peaking before dawn on December 14 as our fair planet […]
Mars Rover Finds Changing Rocks, Surprising Scientists
By KENNETH CHANG The changes found by Curiosity, the NASA vehicle on the planet, show how the climate […]
Down From the Trees, Humans Finally Got a Decent Night’s ...
By CARL ZIMMER Humans sleep more deeply but for shorter periods than other primates’ habits, a study finds. […]