The largest nurses union in the U.S. called on the CDC Saturday to reverse guidance issued this week that allows for people fully vaccinated against COVID-19 to go maskless while participating in indoor and outdoor activities.
Details: National Nurses United executive director Bonnie Castillo said in a statement the new guidance is "not based on science, does not protect public health, and threatens the lives of patients, nurses, and other frontline workers across the country."
A Chinese lander carrying a rover successfully touched down on Mars for the first time, state media reports.
Why it matters: This is the first time China has landed a spacecraft on another planet, and it launches the nation into an elite club of only a few space agencies to successfully make it to the Martian surface.
