NASA successfully crashed a spacecraft into an asteroid in a test of planetary defense. Now it will determine whether the mission was able to alter the asteroid's course.
The seven-day average of new COVID-19 cases topped 280,000 this week as the omicron variant spreads rapidly across the country, according to Johns Hopkins University's tracker.
Health experts caution communities not to lift coronavirus restrictions too soon as the nation continues on a downward trend of virus infections and deaths.
In less than two months, the country doubled its total number of infections, according to data from Johns Hopkins University.
Dr. Chizoba Barbara Wonodi of Johns Hopkins University explains why a strategy to vaccinate everyone may not be the best approach to fighting the virus in lower-income countries such as Nigeria.
The U.S. reported more than 55,000 infections Friday, pushing the total number of cases to more than 7 million. Some two dozen states saw new cases continue to rise this past week.
The U.S. continues to lead the world in both cases and deaths, as states across the Midwest and South battle a surge in new cases.