When NASA's Perseverance rover touches down on Mars in February 2021, the mission will spend the next two years exploring one of the oldest and most intriguing sites on the red planet: Jezero Crater. [Source]
Dr. Deborah Birx on Sunday said the US is in a new phase in its fight against the coronavirus pandemic, saying that the deadly virus is more widespread than when it first took hold in the US earlier this year.
As the "warp speed" trials race to bring vaccines to market, who should be prioritized to get the first doses? Should race and income be included among factors? CNN's Michael Smerconish speaks with a medical ethicist.