NASA’s DART Mission:
On November 24, at around 11.50 am (IST), NASA will launch the agency’s first planetary defense test mission named the Double Asteroid Redirection Test (DART).
- The spacecraft will be launched on a SpaceX Falcon 9 rocket from Vandenberg Space Force Base in California.
About DART Mission:
- The main aim of the mission is to test the newly developed technology that would allow a spacecraft to crash into an asteroid and change its course.
- DART is a low-cost spacecraft, weighing around 610 kg at launch and 550 kg during impact.
- It also carries about 10 kg of xenon which will be used to demonstrate the agency’s new thrusters called NASA Evolutionary Xenon Thruster–Commercial (NEXT-C) in space.
- The spacecraft carries a high-resolution imager called Didymos Reconnaissance and Asteroid Camera for Optical Navigation (DRACO).
- Images from DRACO will be sent to Earth in real-time and will help study the impact site and surface of Dimorphos.
- DART will also carry a small satellite or CubeSat named LICIACube (Light Italian CubeSat for Imaging of Asteroids). LICIACube is expected to capture images of the impact and the impact crater formed as a result of the collision.
- It can also capture images of any dust cloud formed during the impact.
- The target of the spacecraft is a small moonlet called Dimorphos (Greek for “two forms”). It is about 160-metre in diameter and the spacecraft is expected to collide when it is 11 million kilometres away from Earth.
- Dimorphos orbits a larger asteroid named Didymos (Greek for “twin”) which has a diameter of 780 metres.
- The spacecraft will navigate to the moonlet and intentionally collide with it at a speed of about 6.6 kilometres per second or 24,000 kilometres per hour. The collision is expected to take place between September 26 and October 1, 2022.