Mars today is a cold, dry wasteland—but things were likely much different billions of years ago. Since we started launching robotic missions to Mars in the 1970s, scientists have collected evidence that points to a warmer, wetter past for the Red Planet, where the surface was teeming with lakes and oceans that could have been home to life of some kind. It’s part of the reason NASA built and...
The coronavirus pandemic has been a boon for the test proctoring industry. About half a dozen companies in the US claim their software can accurately detect and prevent cheating in online tests. Examity, HonorLock, Proctorio, ProctorU, Respondus and others have rapidly grown since colleges and universities switched to remote classes. While there’s no official tally, it’s reasonable to say...
Jenny’s story is not linear, the way that we like stories to be. She was born in Baltimore in 1975 and had a happy, healthy childhood—her younger brother Danny fondly recalls the treasure hunts she would orchestrate and the elaborate plays she would write and perform with her siblings. In her late teens, she developed…
The world is increasingly banking on green hydrogen fuel to fill some of the critical missing pieces in the clean-energy puzzle. US presidential candidate Joe Biden’s climate plan calls for a research program to produce a clean form of the gas that’s cheap enough to fuel power plants within a decade. Likewise, Japan, South Korea, Australia, New Zealand, and the European Union have all...