Isro Quiz

It will be launched aboard an Ariane 5 launch vehicle. Incorrect. NISAR is planned to be launched aboard an Indian GSLV (Geosynchronous Satellite Launch Vehicle), not the Ariane 5. The launch is expected to take place from Sriharikota, India.

It is capable of detecting changes on the Earth’s surface as small as one metre. Correct. NISAR’s high-resolution radar system can detect changes in the Earth’s surface — such as land deformation, glacier movement, and vegetation dynamics — with a precision of about one centimeter to a few meters, depending on the observation mode and application. So, detecting changes as small as one metre is well within its capability.

It aims to study dynamic Earth processes such as glacier retreat, vegetation change, and seismic activity. Correct. One of the primary missions of NISAR is to study Earth’s dynamic processes, including glacier and ice sheet melting, vegetation dynamics, ground deformation from earthquakes and landslides, and changes in groundwater and subsidence. It will provide critical data for climate science, disaster response, and natural resource management.

• Unlike the Chandrayaan-3 mission which carried the 25-kilogram rover ‘Prayagyaan’, the Chandrayaan-5 mission would carry a 250 kg rover to study the moon’s surface. Correct: Unlike the Chandrayaan-3 mission which carried the 25-kilogram rover ‘Praya gyaan’, the Chandrayaan-5 mission would carry a 250 kg rover to study the moon’s surface.
• ISRO successfully launched the Chandrayaan-2 mission with the Lander Vikram successfully ‘soft-landing’ on the South pole of the Moon in 2019. Incorrect: The Chandrayaan-2 mission (2019) was 98% successful, with only a minor setback in the final stages. However, its high-resolution camera continues to capture and send images. Chandrayaan-3 is a follow-up mission aimed at demonstrating safe lunar landing and roving capabilities.
• ISRO successfully launched the Chandrayaan-3 mission with the Lander Vikram successfully ‘soft-landing’ on the South pole of the Moon on August 23, 2023. 

• It is a joint initiative of ISRO and NASA. Incorrect: The Aditya-L1 mission was launched on September 2, 2023 by the ISRO  aboard the PSLV C-57 rockEt.
• Aditya-L1 is also ISRO’s second astronomy observatory-class mission after AstroSat. Correct: Aditya-L1 is the first space based observatory class Indian solar mission to study the Sun from a substantial distance of 1.5 million kilometers. Aditya-L1 is also ISRO’s second astronomy observatory-class mission after AstroSat (2015).
• The mission aims to provide valuable insights into the solar corona, photosphere, chromosphere, and solar wind. Correct: The mission aims to provide valuable insights into the solar corona, photosphere, chromosphere, and solar wind. The primary objective of Aditya-L1 is to gain a deeper understanding of the Sun’s behavior, including its radiation, heat, particle flow, and magnetic fields, and how they impact Earth.