Will the man in the tinfoil hat please stand?

Fragment of a discussion from Comments:Stephen Hawking: aliens 'almost certain to exist,' could invade Earth

Jump to navigation Jump to search

I wonder why Nasa and Stephen Hawking think spacecraft such as the Pioneer mission can leave the solar system when Halley's comet can't? Is there one set of physics for Stephen Hawking and Nasa and another set of physics for Halley's comet?

BeerDrinker (talk)‎

Retrieved from "https://en.wikinews.org/wiki/Thread:Comments:Stephen_Hawking:_aliens_%22almost_certain_to_exist,%22_could_invade_Earth/Will_the_man_in_the_tinfoil_hat_please_stand%3F/reply#Will_the_man_in_the_tinfoil_hat_please_stand?_1044"