One of the 2.1 million-year-old artifacts, right, recovered from a gully in western China, left, suggest that hominins may have left Africa far earlier than previously believed.
In 2015, the Curiosity rover drilled into a mudstone called "Mojave." Analysis of those drill cuttings yielded organic molecules.
New research suggests there is ice water up there, in craters at the poles where it’s dark and cold.
An arctic fox near Helagsfjället mountain in Sweden. Foxes in the area were severely inbred until three males from a Norwegian captive breeding population turned up.
Dragonfly, a proposed dual-quadcopter lander that would explore Saturn’s moon, Titan, was one of two finalists in NASA’s New Frontiers competition.
The United States Navy's laser weapon. It can be used to ablate, ignite or otherwise damage an air or sea target.
Francisco J. Ayala, one of the university's more generous donors and a star professor, will leave the university as of Sunday without "emeritus" status.
A view of the Milky Way and neighboring galaxies, containing more than a billion stars, released by the European Space Agency’s Gaia mission.
Representative Chris Collins of New York after his arraignment on insider trading charges in New York on Wednesday.
An artist’s rendering of an Earthlike exoplanet orbiting another. Scientists haven’t been able to measure an exoplanet’s tilt yet, but some suspect that a planet’s tilt is key to supporting life.
The distribution of the sweet potato plant has baffled scientists. How could the plant arise from a wild ancestor in the Americas and wind up on islands across the Pacific?
Participants in a study of the effects of ovulation were shown these two photos and asked which woman would be more likely to entice a dating partner.
An artist's impression of 2004 EW95, a relic of the primordial solar system, which scientists believe originated in the asteroid belt between Mars and Jupiter but now floats beyond Neptune.
Almost 230 feet tall and weighing more than 3 million pounds, the Falcon Heavy is more powerful than any other rocket flying today.
An image of Neptune taken by the Voyager spacecraft in August 1989, showing the storm, known as the Great Dark Spot, near the left side of the planet.
A showcase reflects a reconstruction of Ötzi’s skull, center, and his body at the South Tyrol Museum of Archaeology in Bolzano, Italy.
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