Because of absurd and unforgivable astronomy errors and bloopers in films. I consult for free :-) and Here is my 1936-1949 historic science fiction saga looking for a producer or studio to opt it ! clik on the book image and it takes u to Amazon to read the opening scenes where my aliens rescue Amelia Earhart as she crashes into the Pacific... https://srcilantro.wixsite.com/delphinhomecoming/about