flying vehicles

Kitty Hawk, the Google co-founder, tested more than 25,000 times the Flyer model in Las Vegas.

Professor Stephen Hawking died, the NASA probe landed on Mars, changing the definition of the kilogram ... the memorable milestones of the past year.

Father passed away, his studies were unfinished, but George Mel, the boy from South Sudan, did not give up on his dream of building an airplane he cherished from childhood.