16 December 2013, 06:01 PM ET
Catherine the Great was Russia's longest-ruling female leader.
13 December 2013, 07:13 PM ET
Whooping cough, also known as pertussis, is a bacterial infection of the respiratory tract that causes severe coughing. The disease is especially serious for babies.
13 December 2013, 07:06 PM ET
The North Pole, the northernmost point on Earth, has inspired human imagination, scientific exploration and political conflict for decades.
12 December 2013, 05:22 PM ET
A smart grid is an electrical grid that is integrated with a computerized, two-way communication network.
10 December 2013, 11:12 PM ET
Is Christmas too slow in coming? Why not liven things up with a little fun and interesting science? These activities are sure to while away some of those holiday doldrums.
10 December 2013, 09:37 PM ET
Ouija boards are supposedly used to communicate with the dead. But do they really work?
09 December 2013, 10:22 PM ET
In this holiday science experiment, find out what dyes were used to make your favorite colorful candies.
06 December 2013, 09:03 PM ET
The Maya civilization stretched throughout Central America and reached its peak during the first millennium A.D.
06 December 2013, 08:51 PM ET
George Washington Carver was a prominent American scientist and inventor who developed hundreds of products using peanuts and other plants.
06 December 2013, 12:15 PM ET
Turmeric is a spice with a long history of use in cooking and religious rituals, and evidence suggests it may hold health benefits as well.
06 December 2013, 12:49 AM ET
Does adding sugar, aspiring or vinegar to the water keep your Christmas tree fresher longer? Try this experiment to find out.
04 December 2013, 09:36 PM ET
The Andean peak is also the highest in the Western and Southern hemispheres.
02 December 2013, 07:00 PM ET
Using laundry powder, create beautiful crystal snowflakes you can hang on your Christmas tree.
27 November 2013, 11:12 PM ET
The Brazilian wandering spider is one of the most venomous spiders on Earth.
27 November 2013, 11:08 PM ET
Stories about children raised by wild animals are common in myth and folklore. Fortunately, true tales of feral child have proven to be hoaxes.
26 November 2013, 11:41 PM ET
Garden spiders are the creators of the delicate, circular, spoked webs that are the classic image of a spider web.
26 November 2013, 06:05 PM ET
Spectroscopes split light into different wavelengths. You can use them to determine the chemical composition of objects such as stars and elements.
25 November 2013, 06:19 PM ET
Cyclobenzaprine is a prescription medication that is used as a muscle relaxant. It is intended for short-term use, and should be used with other medications.
25 November 2013, 05:24 PM ET
Funnel-web spiders build funnels out of their webs. Some of these spiders are among the most venomous in the world.
22 November 2013, 06:17 PM ET
Wolf spiders are large hunting spiders that exhibit unique parenting habits.
22 November 2013, 04:25 PM ET
Ununoctium — Element 118: Properties, sources and uses.
22 November 2013, 04:16 PM ET
Ununseptium — Element 117: Properties, sources and uses.
22 November 2013, 04:07 PM ET
Livermorium — Element 116: Properties, sources and uses.
21 November 2013, 07:37 PM ET
Huntsman spiders are long-legged predators that hunt down their prey. One species of huntsman spider has a leg span of 12 inches — or as big as a dinner plate.
21 November 2013, 05:47 PM ET
Ununpentium — Element 115: Properties, sources and uses.
21 November 2013, 05:22 PM ET
Flerovium — Element 114: Properties, sources and uses.
21 November 2013, 04:40 PM ET
Ununtrium — Element 113: Properties, sources and uses.
20 November 2013, 06:16 PM ET
Copernicium - Element 112: Properties, sources and uses.
19 November 2013, 07:14 PM ET
Ley lines supposedly circle the globe, connecting monuments and sacred sites with undetectable "earth energies."
19 November 2013, 07:08 PM ET
Prednisone is a medication aimed at treating symptoms of inflammation, allergies and chronic conditions.
19 November 2013, 07:04 PM ET
Roentigenium — Atomic number 111: Properties, sources and uses.
19 November 2013, 05:47 PM ET
The Incas built a vast empire without the wheel, powerful draft animals, iron working, currency or a writing system.