Scientists used data from NASA's Perseverance rover to find tiny lightning bolts on Mars that could scour biosignatures off the world's surface

Health care premiums are set to skyrocket if no action is taken before the end of the year. The odds of anything getting done in time appear slim.

The flu has started spreading earlier than usual in some parts of the country, prompting concerns that cases could soon erupt as millions of Americans travel and gather for Thanksgiving and other upcoming holidays