TNPSC Thervupettagam

First Radar Images of Earth

October 3 , 2025 13 hrs 0 min 8 0
  • NASA and ISRO's joint NISAR satellite was launched from Sriharikota, India.
  • First radar images captured in August show Maine’s Mount Desert Island and farmland in North Dakota.
  • NASA’s L-band radar detected forests, buildings, and crop fields; ISRO’s S-band radar will observe vegetation.
  • The satellite reached its 464-mile orbit in September and will begin full science operations in November 2025.

 

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