Tag Archives: percent

NASA’s perseverance Mars rover launched at Cape Canaveral, Florida, on July 30, featuring state-of-the-art technology including high definition video equipment and the first interplanetary helicopter. Many of the tools are designed as experimental steps towards human exploration of the red planet. Crucially, Perseverance is equipped with a device called the …

A new guide from the Centers for Disease Control and Prevention estimates that 40 percent of people infected with COVID-19 are asymptomatic and the likelihood of transmission from people without symptoms is 75 percent. In an updated guide also reported by CNN, the agency expanded its “best current estimate” based …