Radiation could pose challenge to putting people on Mars

(NewsNation) — A massive solar storm that impacted Earth also affected Mars, and data suggests radiation levels on the red planet could pose a challenge to human exploration of the planet.

A record-setting solar storm made the aurora borealis visible as far south as North Carolina, stunning people with a view of the dancing light not usually seen in most of the U.S.

That same storm also hit Mars and also caused an aurora there. Data from NASA's Odyssey and MAVEN (it stands...