Among scientists, the consensus is that the ancient astronaut hypothesis is not impossible, but unjustified and unnecessary.
The "mysteries" cited as evidence for the hypothesis can be explained without having to invoke ancient astronauts; proponents look for mysteries where none exist.
Since ancient astronauts are unnecessary, Occam's razor should be applied and the hypothesis rejected according to the scientific consensus.
Among scientists, the consensus is that the ancient astronaut hypothesis is not impossible, but unjustified and unnecessary. The "mysteries" cited as evidence for the hypothesis can be explained without having to invoke ancient astronauts; proponents look for mysteries where none exist. Since ancient astronauts are unnecessary, Occam's razor should be applied and the hypothesis rejected according to the scientific consensus.
Ancient astronauts