Science Magazine – March 24, 2023 issue: This color-enhanced scanning electron microscopy image shows Ti2CCl2 MXenes grown by chemical vapor deposition. The two-dimensional layers of this material grew perpendicular to the substrate and then folded into microspherical structures. Ion intercalation between two-dimensional MXene sheets has potential for energy storage and other applications.
A new pandemic origin report is stirring controversy. Here are key takeaways
Virology database cuts off—and then reinstates—scientists who found and analyzed data collected 3 years ago by team in China
Earth at higher risk of big asteroid strike, satellite data suggest
“It would be in the range of serious crap happening.”
At a basic level, humanity’s survival odds come down to one thing: the chances of a giant space rock slamming into the planet and sending us the way of the dinosaurs. One way to calibrate that hazard is to look at the size of Earth’s recent large impact craters.