Prehistoric cave paintings went undetected for thousands of years. Then drones flew by

In the future, drones could prove highly effective at quickly and safely carrying out similar field work in remote areas. — AFP

Several ancient cave paintings were recently discovered along the coast of Spain by researchers using a pioneering new technique.

By flying drones into otherwise inaccessible mountain terrain, researchers were able to spot the paintings, which likely went undetected for thousands of years, according to a study published in the journal Lvcentvm.