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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...

Milky Way family tree

Galaxies formed by the merging of smaller progenitor galaxies. An international team of astrophysicists has succeeded in reconstructing the merger history of our home galaxy, creating a complete family tree. To achieve this, the researchers analyzed the properties of globular clusters orbiting the Milky Way with artificial intelligence. Their investigations revealed a previously unknown galaxy collision that must have permanently altered the appearance of the Milky Way.

from Space & Time News -- ScienceDaily https://ift.tt/39miKFt

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