Can a Retired Rocket Engine Take Us to Mars?

The space shuttle's main engine was mothballed with the program in 2011. Now NASA believes it's the future of interplanetary travel.

How and Why Microplastics Invade Our Everyday Lives

Organizations like the Ocean Cleanup use nets (above) to capture large pieces of trash, but microplastics often slip through. Data from a 2016 study (left) found that fibers made up as much as 71 percent of microplastics that flow into the Great Lakes.

Life in the Fast Lane: Peek Inside the RVs of NASCAR's Finest

NASCAR DRIVERS FACE A GRUELING SCHEDULE, SPENDING more time at the track than they do at home; the 2022 NASCAR schedule will cover 39 weekends this year, with up to 19 consecutive weeks of racing.

We Built the World's First V-8 Tesla

The Rich Rebuilds team had a dead model S. They fixed it with a Camaro engine

This Is the Closest Scientists Have Gotten to Reaching Absolute Zero

The absolute temperature scale gives measurements in Kelvins-unlike Celsius and Fahrenheit, which use degrees. Absolute zero is thus 0 Kelvin, not 0 degrees Kelvin.

TCL's Latest 6-Series Television Is the First Affordable 8K TV

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Someday, a Pig-to-Human Organ Transplant Could Save Your Life

Kidneys aren't the first pig part to enter a human body. Doctors routinely transplant pig heart valves into human patients.

This Natural Treasure Contains the Secret to Stronger Armor

Keshi pearls, sourced from Akoya pearl oysters, can exhibit up to 2,615 layers of nacre, built up over a span of 548 days.

Plotting the Lot: Which Cordless Lawn Mowers Cut the Most Grass

THE TEST

I Bought a GHOST TOWN

This abandoned California mining village once had 400 buildings. Now I'm restoring the 20 that remain.

Digital Locks Are Shackling the Future of Tinkering

It's likely been decades since you last found a service manual included in the box with a new tech product. The Right to Repair movement seeks to change that.

HOW TO BUILD a BACKYARD GREENHOUSE

Step-by-step plans for making a plant-filled oasis

Did the U.S. Lose a Crucial Testing Ground When It Left Afghanistan?

Members of the 82nd Airborne Division test C4 in Afghanistan in 2002