Why do we still love leopard print?

Written by Marianna Cerini, CNNIn a black and white photo from the 1950s, singer and actress Eartha Kitt is seen dressed in head-to-toe leopard print. She looks defiant and self-assured, while, next to her, a cheetah sits nonchalantly on a leash.It is an iconic photo. It is also one of

Hypersonic, nuclear airplanes of the future

(CNN) — From blended wing airliners powered by nuclear fusion to a new generation of spacecraft designed to carry tourists to the moon, it's hard not to be mesmerized by Oscar Viñals' boldly ambitious aircraft designs.The Barcelona-based designer's futuristic concepts resemble something from a science fiction film. But the designer