Science

What causes tornadoes and how to decipher watches and warnings
When severe weather hits the United States, there are ways people across the country can prepare for the potential impact of hail, rain, damaging winds and more. Tornadoes can take down power for thousands of people, cause catastrophic property damage and kill. 
NASA and SpaceX launch astronauts to the ISS
The arrival of the new crew will pave the way for the return of two astronauts who have been “stuck” on the station since June of last year.
The U.S. agency that monitors weather will cut another 1,000 jobs, AP sources say
Multiple sources tell The Associated Press that the Trump Administration is starting another round of job cuts — this one more than 1,000 — at the nation’s weather, ocean and fisheries agency. 
Does the narwhal’s famous tusk help it catch fish?
Intriguing video of narwhals using their tusks to mess with fish has scientists speculating about what this behavior might mean.
Watch the moon turn red during a total lunar eclipse in March
A total lunar eclipse will flush the moon red across the Western Hemisphere. On Thursday night into Friday morning, the Earth will cast a shadow that totally blocks the moon. Best viewing will be from North America and South America. 
Health psychologist explains how to change your mindset and embrace winter in new book
What’s the difference between embracing rather than merely enduring winter? In her new book, “How to Winter,” health psychologist Kari Leibowitz says it’s all about mindset.
NASA's two stuck astronauts are finally closing in on their return to Earth after 9 months in space
NASA's two stuck astronauts are just a few weeks away from finally returning to Earth after nine months in space. Butch Wilmore and Suni Williams spoke with reporters Tuesday from the International Space Station.