From volcanoes to possible evidence of life, decades of exploration have led to remarkable discoveries about Mars. Space historian Andrew Chaikin spoke with the PBS NewsHour's Miles O’Brien and shared 10 photos that best unveil what we’ve learned about the red planet so far.
Stream your PBS favorites with the PBS app: to.pbs.org/2Jb8twG
Find more from PBS NewsHour at www.pbs.org/newshour
Subscribe to our UKposts channel: bit.ly/2HfsCD6
Follow us:
Facebook: www.pbs.org/newshour
Twitter: / newshour
Instagram: / newshour
Subscribe:
PBS NewsHour podcasts: www.pbs.org/newshour/podcasts
Newsletters: www.pbs.org/newshour/subscribe