Since 1972 nobody has returned to the moon. In these 45 years humans has been capable of spectacular achievements: detect gravitational waves, apply genetic editing techniques to modify embryos and treat hereditary diseases; develop promising treatments for cancer; have cars that drive themselves; discover solar systems with exoplanets in distant galaxies. But we have not returned to the Moon. Why?
The Blue Marble is a famous photograph of the Earth, taken on December 7, 1972, by the crew of the Apollo 17 spacecraft, at a distance of about 45,000 kilometres (28,000 mi).[1]