Until recently it was the ‘stealth’ Omicron: Here’s what we know about the BA.2 variant.

'We want to be the UPS or FedEx of the moon': A startup's big moonshot

Research conducted in nearly 6,000 hotel concierges in the U.S. found that hotels provide better service to white customers than Black and Asian customers

2 giant blobs in Earth's mantle may explain Africa's weird geology