Space elevators could get us to Mars in record time — and Japan is planning one for 2050
Space elevators are just theoretical at this point, but a Japanese company hopes to build one in the next 25 years for $100 billion.
Jenny McGrath
Senior Reporter
Mexico City is just the beginning. Here are 11 other cities at risk of running out of water.
What makes a city most at risk of a water shortage isn't how much water it has access to. It's how that available water is managed and distributed.
Archaeologists found a secret chamber at the base of the Great Pyramid of Giza, and they have no idea what it is
Archaeologists used high-tech methods to find a strange L-shaped structure in Giza, Egypt. Above ground, it was impossible to tell anything was there.
22,000-year-old artifacts could rewrite ancient human history in North America
Archaeologists debate when the first humans arrived in the Americas. Controversial 22,000-year-old stone tools are one of the latest discoveries.
Why the US can't send humans to Mars
Getting humans to Mars has been on the minds of leading scientists and engineers since the '50s, but for one reason or another, no one can manage it.
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The CEO behind the world's biggest science and engineering fair says the biggest mistake parents make is putting too much pressure on their kids
The International Science and Engineering Fair is a huge competition with big money on the line. Its CEO shares the biggest mistake parents can make.
Photos show Mount St. Helens, the most disastrous volcanic eruption in US history 44 years ago
In 1980, Mount St. Helens erupted, killing dozens and forever changing how the US monitors earthquakes. The volcano is still active but not erupting.
A 16-year-old took home $75,000 for her award-winning discovery that could help revolutionize biomedical implants
Grace Sun won the ISEF science fair for her work on OECTs, which have benefits over current biomedical devices and could help a variety of diseases.
What it will take to modernize the American grid and usher in the clean-energy revolution
The US grid is ill-equipped to handle what's coming. Here's what it will take to modernize the grid and reach our carbon-pollution-free energy goals.
16 things you shouldn't recycle — even if you think you can
Some items you can recycle in one city may be prohibited in another. Batteries, plastic bags, small appliances, and more may not be allowed.
Amateur archaeologists found a mysterious 12-sided object from the Roman Empire that experts can't explain
A group of amateur archaeologists found a mysterious 12-sided dodecahedron in England near an ancient Roman villa. No one knows their purpose.
An 'artificial sun' achieved a record-breaking fusion experiment, bringing us closer to clean, limitless energy
WEST, a fusion reactor in France, broke a record for tungsten tokamaks with a 6-minute plasma. It's an important step toward clean, limitless energy.
The 11 best robes for women, tested and reviewed
The best robes for women fit comfortably and last for years. Our favorite bathrobes for spring are lightweight and make great Mother's Day gifts.
A young Duke professor won $250,000 for her algorithms that could find symptoms of heart disease when they start
Duke University professor Amanda Randles won for her work with supercomputers and algorithms, creating blood flow simulations to treat patients.
The $6 billion project to power 1 million NY homes with clean energy is the first of its kind
CHPE is a $6 billion project set to start powering 1 million homes with renewable energy in 2026.
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See the $36 billion Great Green Wall in Africa that's an attempt to hold back desertification
The Great Green Wall aims to regreen 247 million acres of degraded land across Africa's Sahel region by 2030. It could cost over $36 billion.
See how scientists uncover 50,000-year-old fossils from California's La Brea Tar Pits where saber-tooth cats and mammoths have been found
La Brea tar pit scientists find mammoths, saber-tooth cats, dire wolves and more in asphalt. Here's how they've uncovered fossils for over 100 years.
A group of WWII-era scientists used themselves as guinea pigs to learn to breathe underwater. Their experiments helped make D-Day possible.
During WWII, scientists breathed CO2, oxygen, and other gases to learn about diving and submarine travel. They helped make D-Day happen.
Scientists went on a hunt for the elusive colossal squid — and brought cruise ship tourists with them
Researchers in search of the colossal squid took Antarctic cruises, hoping to film and learn more about the elusive, rarely seen sea creature.
The 6 best down pillows of 2024
Down pillows offer luxurious support and comfort for all kinds of sleepers. We tested pillows from Brooklinen, Parachute, The Company Store, and more.