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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...
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Tests for the InSight 'Mole'

A blue box, a cubic metre of Mars-like sand, a rock, a fully-functional model of the Mars 'Mole' and a seismometer – these are the main components with which the German Aerospace Center (Deutsches Zentrum für Luft- und Raumfahrt; DLR) is simulating the current situation on Mars. After its first hammering operation on 28 February 2019, the DLR Heat and Physical Properties Package (HP³), the Mars Mole, was only able to drive itself about 30 centimetres into the Martian subsurface. DLR planetary researchers and engineers are now analysing how this could have happened and looking into what measures could be taken to remedy the situation. "We are investigating and testing various possible scenarios to find out what led to the 'Mole' stopping," explains Torben Wippermann, Test Leader at the DLR Institute of Space Systems in Bremen. The basis for the scientists' work: some images, temperature data, data from the radiometer and recordings made by the French Seismic Experiment for Interior Structure (SEIS) during a brief hammering test conducted on 26 March 2019.

from Space Exploration News - Space News, Space Exploration, Space Science, Earth Sciences http://bit.ly/2UTldA8
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