Atmospheric oxygen levels have declined over the past 1 million years, although not nearly enough to trigger any major problems for life on Earth, a new study finds.
3D-printed plastic blocks can now be turned into acoustic holograms that generate 3D shapes made of sound, which could function like sonic "tractor beams," according to a new study.
A group of humans migrating out of Africa some 40,000 to 70,000 years ago mingled with an as-yet unknown branch of humanity, three new studies have found.
Ancient human migrations out of Africa may have been driven by wobbles in Earth's orbit and tilt that led to dramatic swings in climate, a new study finds.
Using small drones, archaeologists have revealed details about an ancient cultic settlement in the Apennine Mountains of Italy.
Scientists once thought that only mammals chewed up their meals. Now, researchers have found that stingrays from the Amazon River may also chew up their insect prey.
A new wearable camera lets you go back in time, so to speak, to retroactively capture those fleeting moments you thought you missed.
Using technology akin to X-ray vision, scientists can read closed books, identifying letters printed on stacks of paper up to nine sheets thick.
The World War II-era aircraft carrier was deliberately sunk off San Francisco in 1951. Here's a look at what scientists found when they dove to the wreck.
If you hate parallel parking, or if you tend to avoid backing into spots at all costs, a new wireless camera that uses your smartphone as its display could help.
A new "superlens" is so powerful that it could help researchers zero in on germs that were too small for microscopes to spot until now, according to a new study.
A mysterious kind of supernova that appears to explode twice may be giving birth to some of the most powerful magnets in the universe, a new study finds.
The technology could usher in a much-anticipated era of quantum computing, which researchers say could help scientists run complex simulations and produce rapid solutions to tricky calculations.
Someday, moviegoers may be able to watch 3D films from any seat in a theater without having to wear 3D glasses, thanks to a new kind of movie screen.
Called LUCA, the forerunner of all living things, was not just a sophisticated organism but also likely lived in iron-rich hot springs that lacked any oxygen.