How can we protect humans on Mars from radiation from solar storms? 

 As space agencies and private companies look toward sending human crews to Mars, they'll have to find ways to mitigate the dangers posed by high-energy radiation from solar storms. 

https://cdn.mos.cms.futurecdn.net/4tteZfDG43YXUyZNHQYmki.jpg

https://www.space.com/mars-protect-astronauts-solar-storm-radiation