20 of the hottest proptech startups in 2024, according to venture capitalists
VC investors said these firms, which use tech to transform legacy aspects of the real-estate industry, are tackling key problems and likely to grow.
Ellyn Lapointe
Science reporting fellow
We put Elon Musk's dream to colonize Mars up against Jeff Bezos' vision of living in space — and one is more realistic
Elon Musk and Jeff Bezos dream of colonizing space, but have very different ideas of how to do it. Experts weigh in on which plan is more realistic.
Scientists are closer than ever to deciphering the secret language of sperm whales. AI could be the key.
Researchers at project CETI are harnessing the power of AI to decode whale-speak.
Rats, roaches, and other creatures are winning against climate change, and it's bad news for humans
In the game of climate change, there are winners and losers. These four animals will come out on top, but you probably won't be happy about it.
A James Webb Telescope scientist explains what it's like to create the most beautiful space images of our time
Two years ago, NASA unveiled JWST's first space images. Take a look at how image processors turn raw telescope data into works of art.
NASA is investing in a rocket that could get humans to Mars and back in 2 months — and travel at 100,000 mph
The Pulsed Plasma Rocket could significantly shorten a round-trip to Mars, reduce risks to astronauts' health, and be ready to launch in 20 years.
Elon Musk has reportedly offered his sperm to help colonize Mars. It's unclear if that's possible.
SpaceX CEO Elon Musk may be uniting two of his biggest life projects: colonizing Mars and having lots of children.
Scientists studied 1,200 cats to determine why they scratch up furniture and how to stop it
Cats will scratch up your furniture for a number of reasons but one of the most noteworthy is if there's a kid in the home, according to a new study.
Forget Mt. Everest — it's not even close to the most difficult mountains to climb, according to mountaineers
Professional mountaineers say climbing Mt. Everest is a walk in the park compared to smaller, more difficult mountains like the Seven Second Summits.
SpaceX Dragon Capsule debris as big as a car hood crash-landed in North Carolina. It's part of a major space trash problem.
Humans are launching more stuff in space than ever before and we don't have the right models to predict when and where it's going to return to Earth.
Mt. Everest is an 'amateur' climb compared to these other peaks, according to a professional mountaineer
Mountaineer Garrett Madison has summited Mt. Everest 14 times. He says the world's tallest peak is no match for smaller, but harder climbs.
At least 7 stars in our galaxy have the potential to harbor advanced alien technology, researchers find
After surveying 5 million stars throughout our galaxy, researchers identified seven that may host Dyson spheres: super-advanced alien megastructures.
This ultrarunner was diagnosed with cancer 2 years ago, but didn't let it stop him. This summer, he'll run over 100 miles through Death Valley.
After completing chemotherapy treatment for cancer, ultrarunner Ray Zahab will run through Death Valley. He told us what keeps him motivated.
2 'potentially hazardous' asteroids will streak by Earth this week, one as big as a mountain. You can watch it live.
On Thursday and Saturday, two different asteroids will hurtle past Earth at close range. You can watch them both live.
A new carbon removal plant will absorb carbon dioxide 99,000 times faster than Earth's oceans
Cutting greenhouse gas emissions isn't enough. We have to start sucking CO2 from the atmosphere and companies like Equatic are leading the charge.
A climber who summited the world's tallest peaks explains how he trains by keeping his body in Everest-mode
Mountaineer and Everest guide Garrett Madison just earned his second "triple crown," a rare climbing achievement. Here's how he stays in shape.
A team of climbers just summited 3 of the most challenging peaks in the world. They made it even harder by collecting roughly 2,000 pounds of trash along the way.
Mountaineer Garrett Madison has summited Mt. Everest 14 times and seen tons of trash accumulate over the years. So he decided to do something about it.
Jeff Bezos has a vision to colonize space with a trillion people. We asked experts to put it to the test.
Jeff Bezos dreams of a future where a trillion humans live in the solar system. But experts are skeptical.
A mysterious hole on Mars could be a jackpot of scientific discoveries, from extraterrestrial life to where astronauts could live
NASA's Mars Reconnaissance Orbiter imaged a hole on Mars in 2022 that recently resurfaced, reigniting the conversation about these mysterious features.
Scientists finally think they know where the most dangerous part of this US earthquake zone is and it's bad news for Washington
Scientists just released the first comprehensive survey of the Cascadia Subduction Zone, the most dangerous earthquake-producing fault in the US.