07 July 2015, 06:49 AM ET
Whether smoking marijuana contributes to weight gain may partly depend on how much pot a person smokes, according to a new study.
07 July 2015, 02:10 AM ET
Can unique and rare American livestock be saved from extinction?
07 July 2015, 01:14 AM ET
American livestock were once diverse and unique, but no longer — can a new IVF effort save some of the rarest remaining herds before they fade away?
06 July 2015, 07:47 PM ET
A new app can help you keep track of your not-so-healthy habits.
06 July 2015, 05:29 PM ET
If watching giant robots fight to the death sounds like your idea of a good time, then you're in luck.
06 July 2015, 05:03 PM ET
Scientists say the Arctic Sea ice extent in 2015 is likely to be among the lowest on record.
06 July 2015, 04:57 PM ET
Nearly 30 observations were lost due to a glitch during a system update on July 4th, 2015. NASA principal investigator Alan Stern lists the data that will not be retrieved from July 4th until July 7th.
06 July 2015, 04:23 PM ET
It's well known that women live longer than men, but this wasn't always the case: A new study finds that differences between men and women's life expectancies began to emerge in the late 1800s.
06 July 2015, 03:21 PM ET
An occasional dolphin kill won't be enough to sustain polar bears as global climate continues to warm.
06 July 2015, 03:01 PM ET
Mysterious cases of paralysis in U.S. children over the last year have researchers searching for the cause of the illness. Now, a new study suggests that a new strain of a poliolike virus may be responsible for some of the cases.
06 July 2015, 02:59 PM ET
Men's testosterone levels may be linked with their risk of depression, a new study finds.
06 July 2015, 02:27 PM ET
Driving while high may not be perfectly safe, but it's actually much better than driving while drunk, research suggests.
06 July 2015, 01:37 PM ET
Americans are a diverse, wacky group of people, and here are some numbers to prove it. From the amount of trash we churn out to our very odd beliefs in conspiracy theories and religion, here's a look at some startling facts about Americans.
06 July 2015, 10:57 AM ET
The prototype of the memcomputer, which works by mimicking the human brain, could one day lead to computers that solve notoriously difficult math problems and could even help to break codes.
06 July 2015, 10:17 AM ET
Spiders can dance on water like tiny ballerinas pirouetting across a slippery stage.
06 July 2015, 10:13 AM ET
You probably already knew that spiders are extraordinary creatures when they're on land. But a new study finds that these critters are also quite remarkable when they're on the water.
06 July 2015, 09:42 AM ET
Is an armed society a peaceful society? New research suggests the opposite: Firearm assaults, firearm robberies, firearm homicide and overall homicide are more common in states with more guns.
06 July 2015, 07:12 AM ET
Named after the famous children's book, Alice in Wonderland Syndrome is marked by visual disturbances that cause objects too look too big, too small, too close or too far away.
03 July 2015, 12:19 PM ET
Americans celebrated the first July Fourth in 1777, a year after declaring independence from England. Here's a list of American traditions and famous fourths.
03 July 2015, 12:11 PM ET
Mark Zuckerberg said predicts people will send thoughts and experiences to each other as easily as people text and email today. However, this fanciful idea of brain-to-brain communication is still a long ways off, neuroscientists say.
03 July 2015, 09:52 AM ET
Here are five odd facts about Lewis Carroll (1832-1898), including his enthusiasm for word games, microscopes and photography.
02 July 2015, 11:25 PM ET
The majestic vulture is on the decline across the globe, and if they fade, what will happen to the carrion they clear from the Earth?
02 July 2015, 10:56 PM ET
As temperatures warm, so do runways, with troubling results.
02 July 2015, 07:10 PM ET
A woman in Washington state is the first person to die of measles in the United States in a dozen years, but how did doctors miss her diagnosis.
02 July 2015, 05:24 PM ET
The author of the Alice books was also a fan of clever word puzzles and logic games.
02 July 2015, 04:10 PM ET
A solar plane currently soaring over the Pacific Ocean, from Japan to Hawaii, has set a slew of new world records, logging the farthest and longest flights made so far in a solar-powered aircraft.
02 July 2015, 03:41 PM ET
Fourth of July weekend is a popular time to hit the beach, but this year, vacationers may not be the only ones swarming the waters off North Carolina.
02 July 2015, 03:32 PM ET
People with colorectal cancer may live longer if they are overweight or obese, rather than thin, a new study finds.
02 July 2015, 02:38 PM ET
The return of Ebola cases to Liberia is worrisome, and raises questions about whether the country was really free of the disease to begin with, experts say.
02 July 2015, 02:05 PM ET
Virginia Tech. Sandy Hook. Charleston. Not only are mass shootings tragedies in their own rights, they appear to be contagious, according to a new study that also found such criminal acts may spread due to sensational media coverage.
02 July 2015, 02:00 PM ET
Slinky snake robots could get a better grip when climbing, thanks to new research on how a seahorse's tail works, according to a new study.
02 July 2015, 01:00 PM ET
More than 10,000 people in the United States were monitored for symptoms of Ebola this past fall and winter, according to a new report from the Centers for Disease Control and Prevention.
02 July 2015, 12:00 PM ET
The woolly mammoth's genome has been sequenced, revealing several key adaptations to the cold that could help scientists design elephant-mammoth hybrids.
02 July 2015, 12:00 PM ET
Cancer death rates will continue to decline in the United States through 2020, including death rates from some of the leading cancers in both men and women, a new study says.
02 July 2015, 11:37 AM ET
Fireworks in purple, blue and red owe their vibrant displays to elements now coursing through your blood stream.
02 July 2015, 10:27 AM ET
New photographs of deep-sea creatures could hold the key to helping predict climate change.