Elana Glowatz

Scientists have picked up strange radio signals from a star 11 light years from Earth.

In a ranking of health care systems in wealthy countries, the U.S. finished in last place. Some familiar nations took the top spots.

A new artificial heart mimics a real one by using air pressure to pump blood, and it could keep people alive as they wait for organ transplants or recover from heart failure.

The iceberg that just broke off from Antarctica is one of the largest ever recorded. Here’s how it stacks up against locations around the world.

Blasting rock off a coal-filled mountain and throwing it into nearby streams is changing the chemical properties of the water and hurting the environment downstream as well.

Scientists used to think the sun was special in how its magnetic fields moved and how it erupted gas into space, but it turns out other stars are doing the same thing.

As the sea ice in the Arctic habitat decreases and the rest of their climate changes, desperate polar bears might attack people more often out of hunger.

Scientists have been experimentally using blood from young people to treat age-related diseases and it could change medicine.

Jupiter’s Great Red Spot is the biggest and longest-living storm scientists have ever seen. That could help them understand the conditions on exoplanets as we search the universe for alien life.

Astronomers have found the smallest star ever recorded, and it could teach them more about the small stars where we find all those potentially habitable exoplanets.

Space company Moon Express hopes to set up a permanent outpost on the moon where robots will mine the south pole for resources.

NASA’s Juno spacecraft has sent back photos of its close flyover of the planet Jupiter’s Great Red Spot, a massive storm that has been swirling for hundreds of years.

The massive iceberg the size of Delaware has broken off from Antarctica’s Larsen C ice shelf after months of anticipation.

Will cities on the sea be the next home for humans? A floating city might be the only answer to overpopulation and rising sea levels.

Why does RFK Jr. sound like he is crying in his interview about vaccines on Fox News?

Children are dying of measles because vaccination rates aren’t high enough.

Fungus communities grew and became more diverse during a simulation of an astronaut crew living in a space habitat. So how will we keep our space travelers safe from infection?

Drinking a lot of coffee could help you live longer, so that you can ultimately drink more coffee.

The 100 fossil fuel producers around the world known as “carbon majors” are responsible for almost three-quarters of the total greenhouse gas emissions, according to a report.

Climate change effects: Rock samples have shown scientists a pattern for rainfall in the Middle East, and it looks like the dry spell is going to continue for a while.

Many animals are endangered, but some are worse off than others. The most critically endangered species include some of the world’s biggest cats, marine mammals and horned creatures.

Antibiotic-resistant gonorrhea is on the rise around the world, and in some cases has become impossible to treat.

Scientists have used a teleportation device aboard a satellite to send quantum information farther than ever before. Beam us up, Scotty.

Why didn’t carbon dioxide levels drop as the world froze into the last ice age? Lots of volcanoes, scientists say.

Not even common bacteria can survive on the Martian surface, it turns out.

Humans will return to the moon and will finally land on Mars, according to U.S. Vice President Mike Pence.

An enormous prehistoric crocodile had teeth similar to the T. Rex so it could chew through bones.

If NASA sends a spacecraft to look for aliens on Saturn's moon Titan, they will have an easy time landing on the lakes in this corner of Saturn’s solar system neighborhood.

As an iceberg the size of Delaware is poised to break off from Antarctica, here’s what you need to know about these floating mountains of ice.