The acceleration (measured in meters/second^2) of Usain Bolt (left) and Dilophosaurus (right) during the 100-meter race. Journalists may use this image only with appropriate credit.

Usain Bolt shared a glimpse from his intense workout session on Friday. The Jamaican runner retired in 2017 after winning eight Olympic and 11 world titles. Bolt took to Instagram on Friday ...

Another image shows a classic portrait of the singer. The 38-year-old posted the photos on his Instagram handle accompanied by a heartfelt caption: In July 2010, Usain Bolt surprised fans in Paris ...