Artist Antonio Alcala gets the stamp of approval for his new USPS postage stamp.

The new stamp honors the athlete and activist who redefined sports and politics, connecting old and new generations.

Every single day is an opportunity to learn something new. But even if you’re not actively reading scientific studies, you can still pick up a lot of new info just by spending time online.

Muhammad Ali stamps will go on sale beginning Jan. 15, and be sold on a sheet of 20 for $15.60. Find out where to get them.

Muhammad Ali always knew how to deliver a punchline that landed as perfectly as his footwork. He once famously quipped that ...

Widely regarded as the most famous and influential boxer of all time, Ali is being honored for the first time with a ...

Twenty-two million Muhammad Ali stamps will be printed, the agency told USA TODAY. Other Ali-inspired postal products include ...

Nearly a decade after last competing on the international stage, Michael Phelps continues to make an impact. As an athlete, he provided inspiration to up-and-coming swimmers. These days, the Olympic ...

BRONX, NY - MAY 17: Cassius Clay, 20 year old heavyweight contender from Louisville, Kentucky poses for the camera on May 17, 1962, in Bronx, New York. (Photo by Stanley Weston/Getty Images) The ...

Priced at $18 million, the 1977 knockout will appear at Lévy Gorvy Dayan’s booth at the Miami Beach Convention Center, where the 22-year-old Cassius Clay (Ali’s birth name) claimed the crown as the ...

Lonnie Ali, widow of heavyweight boxing champion Muhammad Ali, encouraged students to understand the “power of compassion” at an Institute of Politics forum on Thursday. Ali reflected on Muhammad ...