What time is it on Mars? This analog ‘Interplanetary Clock’ can tell you.
If humans ever expect to live on Mars, we’re going to need to get very good at keeping Martian time. The task is simple enough on Earth, thanks to standardized…
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11 cool photos to celebrate International Polar Bear Day
Happy International Polar Bear Day! For 21 years, conservation nonprofit Polar Bears International has celebrated these vulnerable bears with a day of conservation action and learning. Right now, polar bear…
Neanderthals seemed to have a thing for modern human women
By now, it’s firmly established that modern humans and their Neanderthal relatives met and mated as our ancestors expanded out of Africa, resulting in a substantial amount of Neanderthal DNA…
The physics of squeaking sneakers
We’re all familiar with the high-pitched squeak of basketball shoes on the court during games, or tires squealing on pavement. Scientists conducted several experiments and discovered that the geometry of…
Man builds electrified chessboard that shocks players for bad moves
Chess is imposing to the uninitiated. Most casual fans could spend their entire lives studying a library’s worth of chess theory, only to still be routinely humiliated by competitive players.…
New AirSnitch attack breaks Wi-Fi encryption in homes, offices, and enterprises
It’s hard to overstate the role that Wi-Fi plays in virtually every facet of life. The organization that shepherds the wireless protocol says that more than 48 billion Wi-Fi-enabled devices…
Asphalt-spraying truck fixes potholes in minutes
Driving comes with its fair share of annoyances:over-aggressive mergers, seemingly never-ending red lights, and bumper-to-bumper traffic to name a handful. But few are as rage-inducing as plopping into a gaping…
ULA isn’t making the Space Force’s GPS interference problem any easier
DENVER—The Global Positioning System is one of the few space programs that touches nearly every human life, and the stewards of the satellite navigation network are eager to populate the…
Physics discovery explains why sneakers squeak
It’s difficult to imagine watching a basketball game without the sound of sneakers squeaking across the court. The high-pitched noises are as instantly recognizable as they are inevitable—thanks to the…
Emus once faced down the Australian army—and won
In November 1932, the harsh southern sun beat down on an empty paddock in Western Australia. The soil is red and strewn with rocks. Three soldiers emerge from the haze:…