Mars had drier and wetter eras before it dried up completely 3 billion years ago: study


Types of beds on Mars change ‘drastically’  The researchers noted that the Curiosity observed that the types of bed change drastically. They said that sandstone layers on Mars showed structures that indicated their formation from wind-formed dunes. It also suggested long, dry climate episodes. However, thin alternating brittle and resistant beds, which are typical of river-floodplain deposits, also marked wetter conditions. 

The study said that these changes in terrain showed that the climate of Mars underwent several large-scale fluctuations between wetter and dryer periods until the generally arid conditions observed today took hold. Now, during an extended mission, NASA’s Curiosity rover is scheduled to climb the foothills of Mount Sharp and drill into its various beds for a closer look at the fascinating materials. 


(Image: WikiImages/Pixabay) Meanwhile, earlier this month, the Curiosity rover team named a hill on Mars in honour of a Mexican mission scientist who died due to COVID-19. The hill along the path of Perseverance was named “Rafael Navarro mountain” and is located on Mount Sharp in northwest Gale Crater. The team had earlier also named other features on the Red Planet after the notable deceased scientists, including Jake Matijevic and John Klein.  

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