Elements

The U.S. FDA recently approved an affordable saliva-based COVID-19 test. Could it effectively replace nasal swabs? Here's how to tell them apart.

What would a quantum internet look like, and how would it work?

NASA's first asteroid sample return mission is ready for its long-awaited touchdown on asteroid Bennu. What will its samples reveal?

Blockchain was built to revolutionize how we share data, but can it live up to the promises it has built?

Generally considered inhabitable, new observations suggest that Venus could, in fact, be harboring life. Where? In its clouds.

Researchers have re-engineered a plastic-eating enzyme to degrade plastic bottles within days -- and it might be ready to start eating our trash as soon as next year. What will its samples reveal?

How BIG can black holes actually get? And how do they even grow that big? New research probes this question.

Could graphene help us build bigger and better quantum computers?

Fusion energy could be a reality in less than five years.

The mystery of Saturn's giant hexagonal storm may soon be solved.

What's the best soundtrack for studying, focusing and being productive?

Sometimes it's hard to remember new names and faces, but some of that forgetfulness might be due to a psychological phenomenon called the "cross-race effect."

What exactly caused the greatest extinction on Earth, and could it happen again?

Will we ever time travel? Scientists say "no" based on this new discovery.

What if dark matter isn’t the solution to space's greatest mysteries? These are the alternative theories.

Humanity has herpes thanks to this ancient ancestor.

These squishy batteries are made out of water, here's how they work.

No matter what happens, we can rest easy knowing that tomorrow is a new day. But that might not be something we’ll be able to say in billions of years. The Earth’s spin is slowing down, and eventually, days will get longer.

Astronauts get motion sickness, too! However, through training with NASA scientists like Dr. Patricia Cowings, they can learn to control it.

Is homosexuality in your genes?

Is saving animals from extinction worth the time, effort and money?

Scientists have created a real tractor beam, but don't get your hopes up. (Get it? "Up... tractor beam...")

There are secrets about you hiding in your pee.

What is sickle cell anemia and how do you get it?