30 November 2015, 02:55 PM ET
The company says that delivery drones could be as "normal" as mail trucks someday.
30 November 2015, 01:45 PM ET
Mauna Kea, Hawaii's tallest volcano, is circled by clouds in a photo taken by an International Space Station astronaut on Nov. 1, 2015.
30 November 2015, 11:15 AM ET
The Paris climate meetings begin on Monday. But what exactly are they?
30 November 2015, 10:11 AM ET
Lasers could enable scientists to develop tiny, shoebox-size accelerators.
30 November 2015, 06:55 AM ET
At least 626 baby right whales have died off the coast of Argentina since 2003, and no one knows why.
28 November 2015, 04:53 PM ET
Digital hoarding could one day be a diagnosable disease.
28 November 2015, 11:46 AM ET
A bizarre three-armed ancient creature probably filtered food particles from the water in order to survive. The animal looked nothing like anything alive on Earth today, the researchers said.
27 November 2015, 02:42 PM ET
Check out amazing photos of humpback whales breaching the ocean surface as scientists monitor their lengthy sea travels.
27 November 2015, 02:41 PM ET
During lengthy migrations, humpback whales in the South Pacific stop over at seamounts that rise hundreds of feet from the seafloor. Scientists suspect the undersea mountains may serve multiple important roles for the whales.
26 November 2015, 09:25 AM ET
A recently discovered fossilized worm from 535 million years ago had an armored body, a mouth ringed with teeth and rows of thornlike spines on its flanks.
25 November 2015, 11:34 PM ET
Despite the naysayers, plastics recycling is actually profitable, and widespread.
25 November 2015, 06:58 PM ET
Progesterone supplements do not lower the risk of miscarriage in women who have suffered from repeated miscarriages in the past, a new study finds.
25 November 2015, 05:00 PM ET
Sometimes, the only sign of a serious cardiovascular condition may be vision problems, a new case report shows.
25 November 2015, 04:10 PM ET
The chikungunya virus usually causes fever and severe pain, but it may also lead to brain inflammation and even death, a new study shows.
25 November 2015, 03:17 PM ET
The fragile remains of 150-million-year-old eggshells are helping researchers figure out what kinds of nests dinosaurs created for their eggs, according to a new study.
25 November 2015, 02:30 PM ET
The death of a Liberian teen from Ebola raises a lot of questions.
25 November 2015, 02:09 PM ET
An empty spider web isn't a mystery; it's a clue.
25 November 2015, 02:00 PM ET
An American doctor who survived Ebola developed serious eye problems shortly after he recovered from the disease, making him the second U.S. Ebola survivor to have eye problems, according to a new report.
25 November 2015, 12:55 PM ET
A flatworm can regenerate its head and brain in the shape of those in other planarian species, researchers have found. Here are images of the bizarre creatures and the experiment that revealed this odd shape-changing ability.
25 November 2015, 10:34 AM ET
Mars may one day have rings like Saturn's, if the Red Planet manages to completely crush its innermost moon, Phobos.
25 November 2015, 10:27 AM ET
Computer simulations suggest that filaments of invisible dark matter form long "hairs" when they go through planets such as Earth.
25 November 2015, 10:25 AM ET
With circles of spiky teeth, articulated armored plates and sharp spines, the 2mm-long Eokinorhynchus rarus, lived in China 535 million years ago. It’s related to modern insects, spiders, crustaceans and roundworms.
25 November 2015, 08:42 AM ET
Physicists have coupled together thousands of atoms at room temperature, wherein actions on one of the atoms can affect its partners across the cosmos. Previously, these atoms could be paired only at temperatures cold enough to liquefy helium.
25 November 2015, 07:49 AM ET
For years, there has been scant fossil evidence showing how the giraffe evolved to have such a long neck. But now, the remains of a 7-million-year-old creature with a shorter neck provides proof that the giraffe's iconic feature evolved in stages.
25 November 2015, 07:46 AM ET
These apps can help users track and manage their chronic pain.
25 November 2015, 07:45 AM ET
On the 100th anniversary of what is arguably Einstein's greatest accomplishment — the publication of his theory of general relativity — PBS is celebrating his work and giving viewers insights into the man behind the theory.
24 November 2015, 06:01 PM ET
An outbreak of E. coli bacteria tied to chicken salad sold at Costco has sickened 19 people in seven states, according to the Centers for Disease Control and Prevention.
24 November 2015, 04:56 PM ET
What really happened at the start of the Big Bang?
24 November 2015, 04:55 PM ET
Without altering a single DNA molecule, researchers engineered a flatworm to grow the heads of different species.
24 November 2015, 04:50 PM ET
Reports of a potent pill powering ISIS fighters have some on high alert. Here's what drug experts say.
24 November 2015, 04:46 PM ET
Turkey Day can be challenging for people with acid reflux, or GERD. Here are some tips that may help.
24 November 2015, 12:07 PM ET
Google created a doodle today to honor the 41st anniversary of the discovery of 'Lucy,' the famous upright-walking Australopithecus ancestor to modern-day humans.
24 November 2015, 12:06 PM ET
The headaches, low-energy feelings and other signs of PMS may signal an important health risk for women.
24 November 2015, 12:01 PM ET
Researchers found chemical clues hinting that when certain bacteria in the belly have had enough, they tell the brain that it's time to stop eating.
24 November 2015, 11:51 AM ET
Eating walnuts might improve your metabolic health, a new study suggests.
24 November 2015, 10:34 AM ET
For the first time, scientists have achieved infinite speeds on a microchip. The light-warping technology behind this innovation could lead to new light-based microchips and help enable powerful quantum computers, researchers said.