21 December 2013, 08:05 AM ET
After the first day of the DARPA Robotics Challenge Trials, a two-legged, 209-pound (95 kilogram) blue robot sits atop the leaderboard, followed by an MIT-built robot. Today, the robots will battle through another round of challenges.
21 December 2013, 07:43 AM ET
Ancient cultures throughout the world have noted and celebrated the shortest day of the year for millennia. Here are six ancient structures that pay tribute to the winter solstice.
21 December 2013, 07:01 AM ET
Money isn't everything, employees say. This is what many workers would rather have.
21 December 2013, 06:59 AM ET
What day do you get the most done? According to research, there's one day that surpasses all the other days in terms of productivity.
21 December 2013, 02:11 AM ET
Baby penguins, snaking lava and lab lightning are just a few of our favorite images from this week. Check these out!
21 December 2013, 12:46 AM ET
Michael Barany has been researching the history of modern mathematics in Paris.
21 December 2013, 12:33 AM ET
Everything around you is made of elements that scientists have studied in quite some detail over the last 200 years. But all that understanding breaks down when these elements are subjected to high pressure and temperature.
20 December 2013, 11:57 PM ET
Oil spills cause devastating long-term effects on dolphins, according to new research.
20 December 2013, 07:41 PM ET
The Byzantine Empire, also called Byzantium, was the eastern half of the Roman Empire that continued on after the western half of the empire collapsed.
20 December 2013, 07:24 PM ET
2013 was a good year for animals.
20 December 2013, 07:17 PM ET
The pulse rate measures the rate at which blood pressure increases throughout the body. There are several places on the body where you can find your pulse.
20 December 2013, 06:57 PM ET
This Holiday Season, have some food for thought.
20 December 2013, 06:51 PM ET
Especially in mild climates, other factors take snow melting lead from sun.
20 December 2013, 06:34 PM ET
Ayurveda is an ancient health care tradition practiced in India.
20 December 2013, 05:41 PM ET
Believe it or not, photons move in much the same way as an inebriated person wandering home from the pub.
20 December 2013, 05:23 PM ET
What is the best way to cope with holiday blues?
Keywords: expert voices, blues, holidays, psychology, depressio
20 December 2013, 05:00 PM ET
Dec. 21, the winter solstice, is the shortest day of the year in the Northern Hemisphere and marks the beginning of winter.
20 December 2013, 03:31 PM ET
For Christmas, your dog will likely want whatever you offer.
20 December 2013, 03:19 PM ET
Cutting is one form of non-suicidal self-injury (NSSI) — also known as self-injurious behavior or non-suicidal self-directed violence — which is the deliberate, self-inflicted destruction of body tissue without suicidal intent.
20 December 2013, 03:13 PM ET
Having a fearsome bite won't get you out of a root canal. A male Siberian tiger named Marty had to undergo the dreaded dental procedure in his den at Scotland's Highland Wildlife Park after keepers noticed signs of trouble.
20 December 2013, 03:01 PM ET
Whey protein is one of the two major proteins (along with casein) contained in milk, and appears in many foods and dietary supplements.
20 December 2013, 02:52 PM ET
Activity trackers like the Fitbit, Jawbone and Nike+ Fuelband are rapidly increasing in popularity — a trend that will continue in the coming years, experts say.
20 December 2013, 02:49 PM ET
In a first for robot-human relations, Japanese astronaut Koichi Wakata chatted with the talking robot Kirobo aboard in the International Space Station on Dec. 6.
20 December 2013, 02:40 PM ET
In December 1968, the Apollo 8 crew became the first humans to experience an Earthrise from the lunar orbit. This visualization is based off of the actual photos and satellite imagery. Narrated by Andrew Chaikin, author of 'A Man on the Moon'.
20 December 2013, 02:23 PM ET
By matching colors to the various wavelengths, scientists have revealed geologic structures invisible to the naked eye while also creating images of the asteroid Vesta that seem more like works of art.
20 December 2013, 02:20 PM ET
A dubious record has been set this year: More than 800 manatees died off Florida, for the first time ever. Many were killed by red tide, a type of toxic algae.
20 December 2013, 02:09 PM ET
Noctilucent clouds, Earth's highest clouds, appeared over the South Pole earlier than usual this year. Water molecules mixed with meteor smoke at the edge of space, creates this phenomenon.
20 December 2013, 02:05 PM ET
Yeasts are microscopic, single-celled organisms belonging to the fungi kingdom — the taxonomic group that also includes mushrooms and mold.
20 December 2013, 01:40 PM ET
From more than 40 countries and 30 U.S. states, people around the world shared more than 1,400 images of themselves as part of the Wave at Saturn event organized by NASA's Cassini mission as seen in this cool space wallpaper.
20 December 2013, 01:18 PM ET
Plan to buy a fitness tracker like the Fitbit Force or Jawbone Up? Check out LiveScience's in-depth reviews before making a purchase.
20 December 2013, 12:56 PM ET
As marijuana's once-ironclad restrictions become more relaxed, and researchers begin to find more therapeutic uses for the formerly banned substance, pet owners around the world are wondering: Is pot good for my pet?
20 December 2013, 12:49 PM ET
Worker ants in some species emit antimicrobial secretions to sanitize themselves on the forest floor. Now, new research shows that these ants also share their cleaning fluids with young, vulnerable broods to keep their youngsters infection-free.
20 December 2013, 12:31 PM ET
Explorer Tim Jarvis just completed an epic journey of survival in a boat from Antarctica to a remote island 800 miles away, before climbing across it, following in the footsteps of Ernest Shackleton.
20 December 2013, 12:13 PM ET
Several new activity trackers allow users to constantly measure their heart rate throughout the day, but for the average person, such information may not be all that useful during non-exercise activities, experts say.
20 December 2013, 12:10 PM ET
From turtles that pee from their mouths to bone-dissolving zombie worms, the animal kingdom can be downright disturbing
20 December 2013, 11:33 AM ET
Butterflies that drink turtle years, fish that climb massive waterfalls and cockroaches that survive snowstorms are among the craziest animal stories of the year.