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Asteroid deflection technologies

Asteroid deflection technologies are methods and strategies developed to prevent potential impacts of asteroids with Earth. These technologies aim to alter the trajectory of an asteroid to ensure it does not collide with our planet Following the success of NASA's DART (Double Asteroid Redirection Test) mission, discussions about planetary defense and asteroid deflection strategies are increasingly prominent. Here are some principal methods and how they work: 1. Kinetic Impactor:    - How It Works: This method involves sending a spacecraft to collide with an asteroid at high speed. The impact changes the asteroid's velocity and trajectory, ideally enough to avoid a collision with Earth.    - Example: NASA's DART (Double Asteroid Redirection Test) mission successfully demonstrated this technique by impacting the moonlet Dimorphos in 2022. 2. Gravity Tractor:    - How It Works: A spacecraft positioned near an asteroid uses its gravitational pull to...

Water plumes on Europa: Tasting an extraterrestrial ocean

Computer simulations of the plumes of liquid water that stream out of Jupiter's moon Europa show that the forthcoming space mission JUICE may offer an answer to the question as to whether the Jovian moon's subsurface ocean could harbour life. Hans Huybrighs comes to this conclusion in the doctoral thesis he has recently completed at the Max-Planck Institute of Solar System Physics and the Technical University Braunschweig, Germany, in collaboration with the Swedish Institute of Space Physics in Kiruna.

from Space Exploration News - Space News, Space Exploration, Space Science, Earth Sciences https://ift.tt/2E6XOlY

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