Imagine you're at a beach, standing near the dunes and looking out on a peaceful sea. The dry sand squishes through your toes, and you decide to build a sandcastle near the shore, without using any liquid to bind the grains together. A few weeks later, you wander back the same way, and your sandcastle is still there.
Articles from Popular Science
Spinach could be good for your heart in more ways than one. It's packed with fiber, vitamin A, and the branching vasculature necessary for cells to absorb nutrients.
Cherries grow on trees, strawberries on vines, but how do cashews grow? Thanks to our current food system, we can get crops from almost anywhere in the world—vanilla from Madagascar, bananas from Ecuador. Of course, the downside of receiving produce from far-off lands is that we can't exactly run into the fields to see how they're grown. For many, the manner in which fruits and veggies emerge from the earth can be something of a mystery.
In 2024 the clock will run out on the International Space Station. Maybe. That's the arbitrary deadline that Congress imposed back in 2014, at which point they'll have to decide whether or not to keep funding the ISS. And yeah, that's a whole seven years away. But then again...it's only seven years away.
Sure, we'd all love to traipse over to Europa and go hunting for alien lifeforms. But in the meantime, we can enjoy the weirdos that already live right here on Earth. Here are 10 of our favorite Earth-dwelling aliens—organisms so strange they seem otherworldly.
At 582,578 square miles, Papahānaumokuākea Marine National Monument is not just the United States' largest marine protected area—it's currently the largest marine protected area in the world. The monument, a stepladder-shaped oceanic expanse dotted with atolls, shoals, and islands northeast of Hawaii's island of Kauai, was created by President Bush in 2006 and expanded by President Obama in 2016.
The Earth is about 4.5 billion years old, give or take a few million years. But most of what we see today on our planet's surface is much younger—only a few billion years old, if that.
Early on Tuesday, the Department of Homeland Security confirmed a specific “security enhancement,” which restricts “large electronic devices” in the cabins of flights into the U.S. from 10 airports in the Middle East.
Katherine Schreiber and Leslie Sim are experts on exercise addiction who believe that tech advances encourage obsessive goal monitoring. Schreiber and Sim loathe wearable tech. “It's the worst,” Schreiber says. “The dumbest thing in the world,” says Sim. Schreiber has written extensively about exercise addiction, and Sim is a clinical child adolescent psychologist at the Mayo Clinic. Many of Sim's adolescent patients have twin exercise and eating disorders, which tend to go together.
Since August of 2012, NASA's Curiosity Rover has tooled around the red planet doing science for us Earthlings. Now, nearly five years and some 10 miles later, the robot is starting to experience the wear and tear of an aging machine: On Tuesday, NASA announced the first two breaks in the rover's wheel treads.