31 October 2014, 06:04 PM ET
The 2014 Ebola epidemic in West Africa is the worst Ebola outbreak in history, and has implications for the world. Here is everything we know about the virus, and its spread, so far.
31 October 2014, 04:23 PM ET
SpaceShipTwo, Virgin Galactic's passenger spacecraft, experienced an 'anomaly' during its fourth rocket-powered test flight on Friday, Oct. 31. See the latest details here.
31 October 2014, 02:26 PM ET
A wayward gray wolf has been spotted several times this month around the North Rim of Grand Canyon National Park. It could be the first of its species to roam Arizona in 70 years.
31 October 2014, 02:17 PM ET
Two experimental vaccines against Ebola are currently being tested for safety, and health officials have said that millions of doses could be available by the end of next year. But how do the vaccines work?
31 October 2014, 01:55 PM ET
The Earth will never catch up to the moon (let's hope), but the number of Ordovician craters may soon takeoff. That's because it's easier and cheaper than ever to sniff out the shocked minerals that confirm an impact.
31 October 2014, 01:53 PM ET
Children and adults alike are digging out those spooky costumes ready for a celebration. We’ve reached that time of year again: Halloween. October 31 is dedicated to remembering the dead.
31 October 2014, 01:19 PM ET
While exorcisms, in which demonic spirits are driven out of a supposedly possessed person, may seem a dark practice relevant only on TV screens, they have long been recognized by the Catholic Church and several religions.
31 October 2014, 01:16 PM ET
Just in time for Halloween, a spooky set of thunderstorms passed over the Eastern Pacific Ocean today.
31 October 2014, 12:15 PM ET
It's true: Scratching an itch does only make it worse. Now scientists have some ideas about why that happens.
31 October 2014, 11:51 AM ET
Facts about the zombie phenomenon in pop culture, movies and gaming.
31 October 2014, 11:03 AM ET
Halloween is upon us tonight and it’s all just a bit of harmless fun, right? Or is there truly a dark side to Halloween?
31 October 2014, 10:46 AM ET
Governors are playing politics by quarantining those who can help fix the Ebola crisis.
31 October 2014, 10:41 AM ET
From their origins as the oldest domesticated plant to their maximum size, here are some interesting facts about pumpkins
31 October 2014, 09:17 AM ET
Before you run out for some Lysol, please read this.
31 October 2014, 09:11 AM ET
Through text messing, the not-for-profit group Creating Community Solutions, is asking Americans to start a conversation with others on mental health.
31 October 2014, 09:02 AM ET
A different approach by a team of National Institutes of Health-funded developmental biologists and physicists at Rockefeller University indicates that a critical element of normal embryonic development is geometrical.
31 October 2014, 08:50 AM ET
The not-for-profit group Creating Community Solutions has created this solution, which lets Americans can take better care of themselves and others.
31 October 2014, 07:15 AM ET
The notion of zombies dates back at least 400 years, but today's walking dead are thoroughly modern monsters, created by open-source collaboration. Here's how zombies have evolved.
31 October 2014, 03:16 AM ET
From teenagers to Lady Gaga's Born This Way Foundation, young activists are forging a new platform for mental health support for the texting generation.
30 October 2014, 11:51 PM ET
Spinosaurus was even bigger than Giganotosaurus and Tyrannosaurus.
30 October 2014, 11:48 PM ET
They may look slow and lumbering, but these amphibious beasts can be intimidating!
30 October 2014, 10:16 PM ET
Colon cancer, the second leading cause of cancer deaths in both men and women, can be flat or look like a cauliflower stalk.
30 October 2014, 06:48 PM ET
The winners of this year's Nikon Small World photo competition have been announced. The grand prize goes to a photographer who captured a rare glimpse inside of a rotifer's open mouth.
30 October 2014, 06:33 PM ET
Scientists have found evidence of water in our inner solar system 135 million years earlier than previously thought.
30 October 2014, 05:32 PM ET
Wandering around the windowsills and kitchen floors of New England is a common spider with a surprisingly nasty bite.
30 October 2014, 05:00 PM ET
The Ebola virus can spread through contact with an infected person's blood, feces and vomit, but some information online suggests it's also possible to get Ebola by being near an infected person who sneezes.
30 October 2014, 04:39 PM ET
The most catastrophic volcanic eruption in the last 2 million years may owe its superpower to stacks of hot molten rock layered like jelly filling inside a sky-high wedding cake.
30 October 2014, 04:25 PM ET
A peek into the mouth of a microscopic animal took the top award in photo contest that honors all this small.
30 October 2014, 03:44 PM ET
Halloween is a time to celebrate mythical creatures that haunt our dreams, but some of these beasts have real-life counterparts in the animal world.
30 October 2014, 02:58 PM ET
Some researchers seize on Oct. 31 as an opportunity for serious study. From an analysis of racist costumes to an assessment of the hazards of egg throwing, here are a few strange chapters from the annals of Halloween science.
30 October 2014, 02:08 PM ET
A deadly new fungal disease that originated in Asia is killing salamanders and newts in Europe and could soon land on U.S. shores, home to the most diverse population of salamanders worldwide.
30 October 2014, 02:06 PM ET
People infected with Ebola vary greatly in terms of how severe their symptoms are. Now a new study in mice suggests genetics may play a role in how each body fights off the virus.
30 October 2014, 12:00 PM ET
The Ocean Atlas underwater sculpture, an 18-foot (5.4 meters), 60-ton statue was recently deployed off the coast of Nassau in the Bahamas
30 October 2014, 11:59 AM ET
The biggest underwater sculpture ever built was placed under the waters off Nassau in the Bahamas.