Current Affairs - April, 2019Science & Techonlogy Dose

Spacex to Launch NASA’s Asteroid-Smashing Mission – GK Dose

Spacex to Launch NASA’s Asteroid-Smashing Mission

NASA has announced that SpaceX will fly its Double Asteroid Redirection Test (DART) planetary-defence mission. The total launch cost for NASA is estimated to be about $69 million.

DART

Double Asteroid Redirection Test (DART) is a planned space probe that will demonstrate the kinetic effects of crashing an impactor spacecraft into an asteroid moon for planetary defense purposes. The mission is intended to test whether a spacecraft impact could successfully deflect an asteroid on a collision course with Earth.

DART Planetary-Defense Mission

  • DART planetary-defence mission will be will launched by the Falcon 9 rocket from Vandenberg Air Force Base in California in June 2021.
  • The spacecraft will slam into “Didymoon,” the 540-foot-wide (165 meters) satellite of the near-Earth asteroid Didymos which is located at about 4 million miles from Eart in October 2022.
  • Scientists will observe the impact with telescopes and measure the change in the Didymoon’s orbit around the asteroid.
  • Scientists hope to move it by just a fraction of a per cent off its path, which is enough to deflect any future asteroids off course since Didymos poses no threat to Earth.

DART won’t be the first spacecraft to wallop an asteroid. Earlier this month, Japan’s Hayabusa2 probe smashed a copper cannonball into the space rock Ryugu, to unearth pristine subsurface material for study.

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