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This image, taken by NASA's Near Earth Asteroid Rendezvous mission in 2000, shows a close-up view of Eros, an asteroid with an orbit that takes it somewhat close to Earth. NASA's Spitzer Space Telescope observed Eros and dozens of other near-Earth asteroids as part of an ongoing survey to study their sizes and compositions using infrared light.
This image, taken by NASA's Near Earth Asteroid Rendezvous mission in 2000, shows a close-up view of Eros, an asteroid with an orbit that takes it somewhat close to Earth. NASA's Spitzer Space Telescope observed Eros and dozens of other near-Earth asteroids as part of an ongoing survey to study their sizes and compositions using infrared light.

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    How to save Earth from asteroids

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How to save Earth from asteroids

Private group of ex-NASA scientists and astronauts are trying to track and map asteroids endangering Earth.

How to save Earth from asteroids

Private group of ex-NASA scientists and astronauts are trying to track and map asteroids endangering Earth.