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NASA spacecraft to hit asteroid in planetary defence check


In world’s first try to alter the movement of an asteroid, scientists hope the tactic can forestall collisions with Earth.

A NASA spacecraft is scheduled to slam into an asteroid, in an unprecedented check designed to forestall doubtlessly devastating collisions with Earth.

NASA’s Double Asteroid Redirection Test (DART) spacecraft will hit the asteroid Dimorphos about 11 million kilometres from Earth on Monday, making an attempt to barely alter its trajectory in a check of the world’s first planetary defence system.

“This is a challenging test, and this is why we’re taking these first steps now to develop this technology before we need it,” Nancy Chabot, the mission coordination lead, instructed Al Jazeera simply hours earlier than the scheduled impression.

The DART spaceship launched from California within the United States final November and is quick approaching its goal, which it should strike at roughly 22,500km per hour (14,000 miles per hour) round 7:14pm Eastern Time (23:14 GMT).

“It’s the final cosmic collision countdown,” tweeted mission management on the Johns Hopkins University Applied Physics Laboratory (APL) within the US state of Maryland.

The asteroid shouldn’t be on the right track to collide with Earth, however Monday’s check marks the primary effort to alter the trajectory of an asteroid utilizing solely kinetic power – and scientists hope that the tactic might be used to nudge asteroids and stop cataclysmic collisions.

A digicam will ship again pictures through the last approach and collision, which will probably be streaming reside on NASA TV beginning an hour earlier than impression. DART has made most of its journey with the steerage of NASA flight administrators.

An autonomous navigation system will take over within the last hours of the voyage, which will probably be monitored in actual time from the mission operations centre at APL in Laurel, Maryland.

The goal is an asteroid “moonlet” about 170m in diametre that orbits an asteroid about 5 instances bigger, referred to as Didymos.

Smaller asteroids are extra frequent and thus a better concern within the near time period, making the Didymos pair appropriate check topics for his or her dimension, in keeping with NASA scientists and planetary defence specialists.

Their relative proximity to Earth and dual-asteroid configuration additionally make them sturdy topics for the primary proof-of-concept mission of DART.

The final result of the check is not going to be verified till a brand new spherical of ground-based telescopes can observe the asteroid pair in October.

The DART group hopes to shorten the orbital monitor of Dimorphos by 10 minutes however would think about no less than 73 seconds ample to show that the tactic might be used to deflect asteroids.

The value of the challenge is estimated to be about $330m, far beneath lots of NASA’s extra formidable house missions.

DART is the newest of a number of NASA missions in recent times targeted on exploring asteroids, rocky remnants from the photo voltaic system’s formation greater than 4.5 billion years in the past.


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