Six astronauts have emerged after living more than half a year isolated in a Mars simulation laboratory at the base of the Mauna Loa volcano in Hawaii. The data will help NASA select the best candidates for the planned mission to Mars in 2030.
This eight-item test is designed to measure your preference for social inequality.
NASA and the National Science Foundation have created important experiments for backyard astronomers to complete during the solar eclipse on Aug. 21.
Since the first planet beyond our solar system was discovered almost 30 years ago, the search for exoplanets has turned up thousands of fascinating worlds.
A Rohingya refugee girl collects rain water at a makeshift camp in Cox's Bazar, Bangladesh, Sept. 17.
However fleeting it may be, the discovery of a long theorized baryon is news for celebration in the physics community.
NASA's planet-hunting telescope offers up even more evidence that Earth-like planets orbiting sun-like stars are 'not rare.'
In a groundbreaking study, researchers traced genetic signatures of cats – some 9,000 years old – back to the Middle East, with feline DNA resembling some modern-day breeds.