Is there any reason why a magnetic field couldn’t be used on a spacecraft to protect astronauts from radiation? In this Cosmic Queries “Behind the Scenes” video, guest host Bill Nye the Science Guy and Astro Mike Massimino discuss the enormous amount of energy required to generate a magnetic field of that much power with comic co-host Eugene Mirman. They also review other, more practical methods of shielding spacecraft from radiation.
A fan wants an explanation of magnets and magnetism, but little did he know his Cosmic Query would be answered by none other than Bill Nye the Science Guy. Bill was our guest host for this episode, along with guest NASA astronaut Mike Massimino and comic co-host Eugene Mirman. Find out how Earth’s magnetic field arises and helps protect our atmosphere, and why Mars’ lack of magnetic field contributed to its loss of atmosphere.