The U.S. economy added 143,000 jobs in January and the unemployment rate dipped slightly to 4%. NBC News’ Brian Cheung and ...

The water vapor from the exhaust turns into ice crystals and combines with water that's already in the air to form clouds.

One of Robert F. Kennedy Jr.’s most devoted cheerleaders, Dr. Patrick Soon-Shiong, the billionaire owner of the Los Angeles ...

There's nothing like a good, old fashioned knock knock joke to make people laugh. Whether you want to cheer up a pal, impress ...