An extraordinary trove of fossils shows how plant and animal life recovered in the million years after an asteroid hit wiped out the dinosaurs.
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It's billed as a significant breakthrough in photonics: the creation of a light-emitting diode (LED) consisting of light and matter quasiparticles in atomically thin materials. Read more ›
By BETH HARPAZ
The Food and Drug Administration recently found trace levels of chrysotile asbestos in Johnson & Johnson baby powder, prompting the company to recall 33,000 containers of it. Johnson & Jo Read more ›
Depression and substance use among former cigarette smokers appear to be on the rise. That's a disturbing trend in and of itself, but also because both behaviors are associated with increased risk for cigarette use relapse. Read more ›
A study found gay and bisexual men would be willing to notify sexual partners about infections using an app that lets them text the information anonymously. Read more ›
Researchers are looking at a type of defect in diamonds that could help improve the technology behind MRI scans and molecular spectroscopy. Read more ›