India Launches NASA-ISRO Satellite To Track Climate Threats From Space
India launched the $1.5 billion NISAR radar imaging satellite on Wednesday from the Satish Dhawan Space Centre, marking the first joint mission between NASA and the Indian Space Research Organisation. The satellite uses dual radar frequencies -- NASA's L-band and ISRO's S-band -- to detect Earth surface changes as small as one centimeter from its 747-kilometer orbit. NISAR will map the entire planet every 12 days using a 240-kilometer-wide radar swath, providing data for climate monitoring and disaster response that will be freely available to users worldwide.

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