How NASA locked Omicron out of its Webb telescope control room

Almost everyone with a hand in guiding the James Webb Space Telescope from Earth to its faraway orbit had a COVID-19 vaccine booster. No way was NASA going to let a microscopic coronavirus take down a massive $10 billion spacecraft. The agency toiled on the powerful observatory for over 25 years. But some people on the team had traveled abroad to the launch site in French Guiana, a region in South America. While there for two months, they hadn't rolled up their sleeves for a third shot against t...