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In honor of the 50th anniversary of the International System of Units, PopSci is looking at the origin and continued preservation of five of our favorite standard units

At the North American bat convention, biologists seek ways to reduce bat deaths at wind farms

Even the Army Corps of Engineers is involved in the effort to protect bats

Nissan has produced a quick, fun-to-drive, technologically sophisticated pure-electric car. But inevitably, limited driving range makes it a daily commuter, not a road-tripper

PopSci is attending the 40th annual National Symposium on Bat Research

Winged tanks, a torpedo-shaped aerobile, and flying cars designed by the 20th century's most renowned aviation minds

Torn between a high-speed plane and a hovering helicopter? Why should you have to choose?

An igloo-shaped lunar base, a train on the moon, a satellite housing 20,000 residents, and other places to live and play in space

If a stem cell treatment replaced the most common cosmetic surgery procedure, it could pave the way for much wider medical use of the potent little cells

We've been using the HTC Surround, one of the first class of phones to launch running Microsoft's fully revamped mobile OS. Is it good enough to forgive years of Windows Mobile misery?

We spent twenty-four hours on a Greenpeace boat in the Gulf of Mexico looking for oil and dispersant among marine life. On the six-month anniversary of the leak, we report back

It's the best tagline a gimmicky jump-assisting shoe could want: "Banned by the NBA." And now it's true

Any scientist can tell you how people catch fire in the movies. Only our columnist sets himself ablaze

What would the United States look like without bats? As winter approaches, biologists seek new methods and technologies to help control a potentially devastating ecological disaster