You are using an older browser version. Please use a supported version for the best MSN experience.

Neil deGrasse Tyson explains what NASA's discovery means for life beyond Earth

Astrophysicist Neil deGrasse Tyson reacts to a discovery on Mars and what it could mean for life beyond Earth.

UP NEXT

UP NEXT

AdChoices

Most Recent

Entertainment

image beaconimage beaconimage beacon