DART - NASA, SpaceX Launch DART: First Test Mission to Defend Planet Earth -Information - 24.11.2021
1World’s First
(NASA’s Double Asteroid Redirection Test (DART), world’s first full-scale mission to test technology for defending Earth against potential asteroid or comet hazards)
DART - NASA, SpaceX Launch DART: First Test Mission to Defend Planet Earth -Information - 24.11.2021
Made Public: 24.11.2021
NASA, SpaceX Launch DART: First Test Mission to Defend Planet Earth
https://www.nasa.gov/press-release/nasa-spacex-launch-dart-first-test-mission-to-defend-planet-earth
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Information
Mission: DART (Double Asteroid Redirection Test) - First Test Mission to Defend Planet Earth
For more information about the DART mission, visit:
https://www.nasa.gov/specials/pdco/index.html#dart
DART on Wikipedia
https://en.wikipedia.org/wiki/Double_Asteroid_Redirection_Test
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Overview
DART is the first-ever mission dedicated to investigating and demonstrating one method of asteroid deflection by changing an asteroid’s motion in space through kinetic impact. This method will have DART deliberately collide with a target asteroid—which poses no threat to Earth— in order to change its speed and path. DART’s target is the binary, near-Earth asteroid system Didymos, composed of the roughly 780-meter (2,560-foot) -diameter “Didymos” and the smaller, approximately 160-meter (530-foot)-size “Dimorphos,” which orbits Didymos. DART will impact Dimorphos to change its orbit within the binary system, and the DART Investigation Team will compare the results of DART’s kinetic impact with Dimorphos to highly detailed computer simulations of kinetic impacts on asteroids. Doing so will evaluate the effectiveness of this mitigation approach and assess how best to apply it to future planetary defense scenarios, as well as how accurate the computer simulations are and how well they reflect the behavior of a real asteroid.
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NASA’s Double Asteroid Redirection Test (DART), the world’s first full-scale mission to test technology for defending Earth against potential asteroid or comet hazards, launched Wednesday at 1:21 a.m. EST on a SpaceX Falcon 9 rocket from Space Launch Complex 4 East at Vandenberg Space Force Base in California.
Just one part of NASA’s larger planetary defense strategy, DART – built and managed by the Johns Hopkins Applied Physics Laboratory (APL) in Laurel, Maryland – will impact a known asteroid that is not a threat to Earth. Its goal is to slightly change the asteroid’s motion in a way that can be accurately measured using ground-based telescopes.
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Oct. 1, 2022 (Impact)
The spacecraft will intercept the Didymos system between Sept. 26 and Oct. 1, 2022, intentionally slamming into Dimorphos at roughly 4 miles per second (6 kilometers per second). Scientists estimate the kinetic impact will shorten Dimorphos’ orbit around Didymos by several minutes. Researchers will precisely measure that change using telescopes on Earth. Their results will validate and improve scientific computer models critical to predicting the effectiveness of the kinetic impact as a reliable method for asteroid deflection.
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