In school, you might have used pi to calculate the area of a circle or the volume of a cylinder, but the applications are part of every corner of our world.

The Justice Department has moved to dismiss charges against an Army veteran who set fire to an American flag near the White ...

When no one showed up for a 9‑year‑old’s birthday party, Texas neighbors united to make her day one that exceeded all ...

A group of residents of a city in central Cuba took to the streets early Saturday and partially destroyed the local ...

A simple food delivery turned into a $800,000 act of kindness, giving an elderly Tennessee couple the chance to finally retire.

Pima County Sheriff Chris Nanos shared the latest on the case as the search for Savannah Guthrie's mother entered its 41st day.

Bronx mother quickly realized her baby was coming far sooner than she’d expected. By the time she’d made it downstairs ...

An Army lieutenant colonel and Reserve Officers’ Training Corps instructor was identified as the victim killed when a gunman ...

All six of the crew members aboard a U.S. refueling aircraft that crashed in western Iraq were confirmed to have died, according to U.S. Central Command. Approximate ...

No need to be a math genius to enjoy National Pi Day on March 14! Celebrate with delicious deals on pies, pizza, and other fun offers.

Kharg Island, a tiny but strategic island 15 miles off the coast of Iran, is home to an oil terminal that ships 90% of the country’s oil exports.

An NBC News analysis of 30 videos and satellite images shows Iranian drones are presenting a new type of struggle for the U.S. and its allies.