Time flies

By Sam J Basch

As the unmanned rover Perseverance landed on the red planet last month, its tiny Mars helicopter will “test powered flight on another world for the first time.”

On earth, the Wright brothers pioneered powered flight more than a century ago. Since then, aviators have broken the sound barrier by flying faster than sound and astronauts have ventured far, to walk on the moon. In time, humankind will go even further, to live on another planet.

How astonishing has been the achievements in aviation – in a fraction of time?