News & Sports

Traveling at 33,000 mph, a massive meteor hit the Earth's atmosphere creating a giant shockwave that blew out windows of glass, injuring nearly 1,000 people and creating panic. On the same day, an asteroid half the size of a football field came within 17,000 miles from Earth. NBC's Tom Costello reports. (Nightly News)

Math Ambassador Scott Flansburg, aka the "Human Calculator," demonstrates his Guinness world record-holding ability to add a number to itself over and over and shares details on "The American Math Challenge" while taking on some math whiz kids from New York City. (TODAY)

Samantha Garvey, a homeless teen from New York's Long Island who inspired many as a semi-finalist in a prestigious science competition, and her family get the keys to an affordable home thanks to help from across the country. NBC's Kate Snow reports.  (Nightly News)

Math can be intimidating for students of all ages, but 6-year-old Jared Holgado is already a math prodigy. KNBC's Gordon Tokumatsu reports. (NBC News)

Dec. 15: A group of Rhode Island college students have engineered a new device to measure the amount and quality of sleep a person gets each night. NBC's chief medical editor Dr. Nancy Snyderman reports.