Humans have occupied the International Space Station (ISS), which sits at about 248 miles (400 km) above sea level, for 25 ...

Microgrids generate, store, and manage their own power, and can disconnect from the utility grid entirely during outages. Real-world systems, from UC San Diego's 92 percent self-powered campus to ...

Here are the four lifestyle changes that upper-middle-class households swear by.

TAMPA, Fla. — For the first time this school year, the state offered the new Step Up for Students scholarships. One of them is specifically for families who choose to homeschool. It provides access to ...