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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...

Hubble Stows a Pocketful of Stars

Globular cluster NGC 1805, a tight grouping of thousands of stars is, located near the edge of the Large Magellanic Cloud, a satellite galaxy of our own Milky Way. In the dense center of one of these clusters, stars are 100 to 1,000 times closer together than the nearest stars are to our Sun.

from NASA Image of the Day https://ift.tt/3iqlYJy

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