For the first time in months, the U.S. is recording fewer than 100,000 daily infections. Variants of the virus have been confirmed in at least 1,000 cases in 41 states. The CDC director warns “we can’t let our guard down” when it comes to masks and health precautions. » Subscribe to NBC News: http://nbcnews.to/SubscribeToNBC » Watch more NBC video: http://bit.ly/MoreNBCNews …

Follow along with NASA’s team as the Perseverance rover starts the entry interface and lands successfully on Mars. » Subscribe to NBC News: http://nbcnews.to/SubscribeToNBC » Watch more NBC video: http://bit.ly/MoreNBCNews NBC News Digital is a collection of innovative and powerful news brands that deliver compelling, diverse and engaging news stories. NBC News Digital features NBCNews.com, MSNBC.com, TODAY.com, Nightly News, Meet …

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