science


Archaeologists in China Discover the Oldest Stone Tools Outside Africa

Archaeologists in China Discover the Oldest Stone Tools Outside Africa

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.

Life on Mars? Rover’s Latest Discovery Puts It ‘On the Table’

Life on Mars? Rover’s Latest Discovery Puts It ‘On the Table’

In 2015, the Curiosity rover drilled into a mudstone called "Mojave." Analysis of those drill cuttings yielded organic molecules.

Ice on the Surface of the Moon? Almost Certainly, New Research Shows

Ice on the Surface of the Moon? Almost Certainly, New Research Shows

New research suggests there is ice water up there, in craters at the poles where it’s dark and cold.

Arctic Foxes on a Swedish Mountain Turned ‘Blue.’ It Was a Good Thing.

Arctic Foxes on a Swedish Mountain Turned ‘Blue.’ It Was a Good Thing.

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.

Finalists in NASA’s Spacecraft Sweepstakes: A Drone on Titan, and a Comet-Chaser

Finalists in NASA’s Spacecraft Sweepstakes: A Drone on Titan, and a Comet-Chaser

Dragonfly, a proposed dual-quadcopter lander that would explore Saturn’s moon, Titan, was one of two finalists in NASA’s New Frontiers competition.

Laser

Laser

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, Famed Biologist, Resigns After Sexual Harassment Inquiry

Francisco J. Ayala, Famed Biologist, Resigns After Sexual Harassment Inquiry

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.

Gaia’s Map of 1.3 Billion Stars Makes for a Milky Way in a Bottle

Gaia’s Map of 1.3 Billion Stars Makes for a Milky Way in a Bottle

A view of the Milky Way and neighboring galaxies, containing more than a billion stars, released by the European Space Agency’s Gaia mission.

A Congressman, a Financial Deal and an Intricate Web of Conflicts

A Congressman, a Financial Deal and an Intricate Web of Conflicts

Representative Chris Collins of New York after his arraignment on insider trading charges in New York on Wednesday.

Summer Solstice 2019: The Search for Life in the Galaxy

Summer Solstice 2019: The Search for Life in the Galaxy

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.

All by Itself, the Humble Sweet Potato Colonized the World

All by Itself, the Humble Sweet Potato Colonized the World

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?

Women’s Views on Women Who Are Ovulating

Women’s Views on Women Who Are Ovulating

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.

This Asteroid Shouldn’t Be Where Astronomers Found It

This Asteroid Shouldn’t Be Where Astronomers Found It

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.

SpaceX’s Big Rocket, the Falcon Heavy, Finally Reaches the Launchpad

SpaceX’s Big Rocket, the Falcon Heavy, Finally Reaches the Launchpad

Almost 230 feet tall and weighing more than 3 million pounds, the Falcon Heavy is more powerful than any other rocket flying today.

Dark Spots in Our Knowledge of Neptune

Dark Spots in Our Knowledge of Neptune

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.

The Final Hours of the Iceman’s Tools

The Final Hours of the Iceman’s Tools

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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