The discovery of huge amounts of water ice and possible organic compounds on the heat-blasted planet Mercury suggests that the raw materials necessary for life

Spliced from thousands of screenshots of the planets, NASA has created a new video of Mercury that shows off the planet's diversity in terrain.

By analyzing ear wax from a deceased blue whale, scientists gained clues to years of chemical exposure.

This week in the hour before sunrise early morning stargazers will get a double treat: the planet Mercury and two special comets.

For the next few weeks, about half an hour before sunrise, Mercury will peek over the southeastern horizon for observers in the northern hemisphere.

The surface of Mercury is shrinking faster than previously thought, photos from a NASA spacecraft orbiting the tiny planet reveal.

The dream of a space-faring humanity is deep-rooted.

This devilishly difficult quiz will separate the auto experts from the pretenders.

How smart are you when it comes to keeping clean and germ-free? Take our quiz and find out.

Test your knowledge of the wild world of animal mating.

From what they eat to wear they live, test your giant panda knowledge with this quiz.

Crows and ravens are some of the smartest animals on the planet. So what do you know about them?

Whether you watch them at your backyard bird feeder or just see them when you're hiking, how much do you really know about our feathered friends?

What do you know about your kidneys? They don't get the acclaim of the brain or the heart, but these small organs work nonstop to keep your body healthy.

Let's see how well you know your own species' family tree.

Test your knowledge about frogs and toads with this quiz.

You go to the beach to relax and soak up the sun. But how much do you really know about the waves and the sand?

How much do you know about these ancient shelled reptiles?

Want to delve inside someone's subconscious? Graphology might hold a key.

Sometimes scientists infuse some pop culture into their species names. Can you match the celeb to the critter?

Before you scoop up your next bowl of ice cream, test your knowledge about everyone's favorite summer treat.

Due to history or legend, most countries are known for contributing something specific to the world. How many do you know?

They help you see the world, but how much do you really know about the windows to your soul? Test your knowledge.

Can you live without your morning coffee or afternoon soda? See how savvy you are about your daily buzz.

When your head hits the pillow at night, do creatures lurk? See how much your know about terrifying dreams.

There's a whole medicine chest in the garden. Do you know which plants to use for what ailments? Test your holistic herb wits here.

How much do you really know about the ground under your feet? Test your knowledge with this quiz.

How well-versed are you with our planet's fascinating geology? Test your knowledge and find out.

Our feline friends come in many colors and coat patterns, each with a name. How many do you know?

If you find yourself glued to the TV when the Academy Awards roll around each year, this quiz might be your chance to shine.

There are those of us who aced AP calculus, and there are those of who can't figure out the tip. Take our quiz to find out just how much of a math whiz you are.

Not all penguins make their home in icy Antarctica. See if you know where in the world to find these penguin species.

These iconic pink birds are immediately recognizable, but how much do you know about them? Test your knowledge of these beautiful birds!

Life across the globe depends on bees, butterflies, birds, bats and other pollinators. Test your knowledge about these vital creatures.

From spring showers to summer thunderstorms, rain can fall any time of year. But how does it work?

When a painting sells for a jaw-dropping price, it makes headlines. Do you know how much these works of art went for?

They're massive, they're all-natural and, in most cases, they're millions of years older than we are. So how were these amazing landforms created?

Animals use their senses to detect other animals, communicate and do some wild things. Can you identify the super senses of these animals?

Different countries have different dining customs. Do you know how to avoid being offensive at the dinner table, no matter where that table is?

Bison have been named our new national mammal. Test your knowledge of this species that's so critical to North America's ecology.

These unusual creatures are stunningly beautiful and surprisingly important to life on Earth. Show us what you know!

Step aside, retrievers and beagles, and let these rare dogs trot into the spotlight. From Pulis to Leonbergers, how much do you know about these breeds?

The online dictionary Dictionary.com added a number of popular words culled from headlines and social media. Can you define them?

Sheep provide us with meat, clothing and even scientific illumination, but how much do you know about them? Find out with this quiz.

We use calendars to keep track of our days, our weeks and our years. But how much do we really know about them?

We're surrounded by any number of dangers, but which ones should you really worry about? Take the quiz to find out what's more likely to summon the Grim Reaper.

Nobel by the numbers: How much do you know about the history of the Nobel Prize? Take the quiz.

Test your knowledge of all things autumnal.

Bacteria live everywhere in your body, including your gut. These microbes have quite an impact on your health. Do you know what they do?

Whether it's a white lie or a whopper, fibs are part of our daily lives. We like to think we're honest but, well, we're not. Test your falsehood expertise.