Scientists have picked up a radio signal 'heartbeat' billions of light-years away
Scientists have not been able to pinpoint the exact location of the radio waves yet.
Science
Over-the-counter birth control pills are available worldwide. The U.S. may be next
Birth control pills are available in the U.S. only with a prescription. Now a drugmaker is asking the FDA to approve a progestin-only contraceptive that would be available without one at pharmacies.
These Brazilian besties are inventing an mRNA vaccine as a gift to the world
Pfizer and Moderna have refused to divulge details of how to make their cutting-edge COVID shots. Here's what two scientists — and longtime best friends — are doing about it.
NASA's James Webb telescope captures groundbreaking images of distant galaxies
Thanks to the telescope's deep and sharp infrared images, Earthlings are getting a more detailed look at distant galaxies than was ever possible.
NASA's James Webb telescope reveals the universe as we've never seen it before
NASA's $10 billion new telescope showed the world something remarkable today: an image of some of the first galaxies to form in the universe.
A new dominant omicron strain in the U.S. is driving up cases — and reinfections
BA.5 is now the dominant omicron strain in the U.S. It's good at evading the immune system, though doesn't appear to cause more serious illness.
When it comes to darker skin, pulse oximeters fall short
These devices measure blood oxygen levels and can help identify when patients are dangerously ill. But research shows they can deliver misleading results for people with darker skin.
Manhattanhenge, a unique urban phenomenon, sets for the last time this year
On Monday and Tuesday, the sun will set between New York's skyscrapers — offering a perfect photo opportunity and a chance to marvel at the city planning that made Manhattanhenge possible.
A new species of giant water lily has been discovered
Botanists have discovered a new giant water lily with lily pads that can grow to nearly 10 feet wide. Researchers previously thought there were only two species of giant water lilies.
David Biello: Are we alone in the universe?
Are we alone in the universe? This hour, we travel the cosmos with TED science curator David Biello in search of extraterrestrial life, uncovering how it may look and how we'll know we've found it.