
Mars, our cold and dry planetary neighbor, has a thin atmosphere held by weak gravity.
Early probes revealed Mars once had rivers, possibly creating conditions for life.
Missions have provided insights into its geology, atmosphere, and climate, yet each new mission raises more questions.
The 20th century saw early attempts to map and explore Mars, including Soviet and NASA missions like Mariner 9, Viking, and Pathfinder.
Modern technology, such as the Mars Odyssey, Mars Express, and rovers like Spirit, Opportunity, and Curiosity, continue to reveal Mars’ secrets.
Scientists still wonder if Mars harbored life in its warmer, wetter past.
Directed by Evan Clark
Series: Zenith, Advances In Space Exploration