NASA and ISRO are launching the NISAR satellite on June 18, 2025, from India. This $1.5 billion mission will use advanced radar to monitor Earth's surface with unprecedented precision, day or night. NISAR will provide critical data on farming, climate change, earthquakes, and floods.NASA and ISRO are launching the NISAR satellite on June 18, 2025, from India. This $1.5 billion mission will use advanced radar to monitor Earth's surface with unprecedented precision, day or night. NISAR will provide critical data on farming, climate change, earthquakes, and floods.