How Conflicting Guidance on Travel During the Pandemic Shows Little Progress

Astronauts are kept in quarantine before they are due to travel into space and undergo exams. However, despite such rigorous tests, astronauts still get sick, and Apollo 7’s Wally Schirra got a cold in the middle of his mission

Lawrence Krauss: Why the easily offended are a threat to scientific progress

C.D.C. Eases Up on Dog Travel Ban