Twelve years ago, astronomers confirmed the detection of the first-known natural object to orbit Earth other than the moon—a tiny asteroid known as 2006 RH120. While scientists have predicted more of ...

Props are supports. You prop up a structure on a scaffold while bolting or welding it in place. A friend can prop you up when you’re down. In theatercraft, a prop supports the fiction of the ...

There are about a dozen metrics by which I judge 3D printers when testing them, including speed, noise and the materials with which they can print. But, none of the latter attributes compares in ...

Editor’s Note: This article previously appeared in a different format as part of The Atlantic’s Notes section, retired in 2021. The Monday after Daylight Savings Time starts is a drag. Students nod ...

Earth's cosmic neighbourhood is more dynamic than imagined, hosting temporary 'mini-moons' captured by gravity and 'quasi-moons' in resonant orbits. These transient visitors, unlike our permanent Moon ...

Breakthroughs, discoveries, and DIY tips sent six days a week. Terms of Service and Privacy Policy. For the last two and a half years, the Earth may have had two ...

Former CNET editor Dong Ngo has been involved with technology since 2000, starting with testing gadgets and writing code for CNET Labs' benchmarks. He managed CNET's San Francisco Labs, reviews 3D ...

A glue-like magnetic spray can turn objects, such as pills, into mini robots that can be controlled by magnets and navigated through the body. The sprayed objects can be made to roll, flip and crawl ...

Planet-making disks of gas, dust, and ice are known to form around stars and brown dwarfs. But now, disks with the potential to form planets, or at least moons, have been found outside the solar ...