Q. Consider the following statements regarding the Inflatable Aerodynamic Decelerator (IAD):

1. It is a technique developed for atmospheric entry and landing of payloads, aiding the safe recovery of rocket stages and landing on other planets.
2. It is constructed from Kevlar fabric, a synthetic fibre resistant to atmospheric and temperature changes, with a coating of polychloroprene to further enhance durability.
3. It is primarily used for altering the orbit of asteroids in space missions.
4. The technology was developed by the Vikram Sarabhai Space Centre (VSSC) under ISRO.

Which of the above statements is/are correct?
Answer: Only 1, 2 and 4
Notes: Statement 1 and 2 are correct—Inflatable Aerodynamic Decelerator (IAD) is for atmospheric entry and landings, made from Kevlar fabric with a polychloroprene coating. Statement 3 is incorrect—IAD is not for asteroid orbit alteration. Statement 4 is correct—Vikram Sarabhai Space Centre (VSSC) under ISRO developed this technology for missions including Venus and Mars.