NASA Attempt To Knock Asteroid Out Of It’s Natural Orbit – To Bring it CLOSER To Earth
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NASA is planning to forcibly return an asteroid to an orbit very close to Earth to enable them to study it by a manned mission.
Arstechnica.com reports:
In its place, a robotic probe will pluck a boulder from the surface of an asteroid and return that, testing our ability to redirect similar rocks if they threaten Earth.
In fact, the entire mission is generally focused on technology development. Once the asteroid is placed in a cis-lunar orbit (orbiting Earth and closer than the Moon), it will be visited by a crewed Orion capsule that will allow detailed study and a return of samples to Earth. But the focus of this mission will be testing technology that will allow extended manned missions in space.
The current timeline involves further studies of potential targets for extracting a boulder in the years leading up to 2019. Right now, three asteroids are on the menu: Itokawa (which was visited by the Japanese spacecraft Hayabusa), Bennu (which is planned for a sample return mission called OSIRIS-REx), and 2008 EV5. In each case, the orbit and composition are well-known, making them relatively low risk.
gravitational interactions to alter the body’s orbit. The probe will also provide further tests of solar-powered ion engines, which can move mass efficiently (if slowly) in space. NASA hopes to eventually use these engines to pre-position equipment and supplies for manned missions.
After the probe identifies and removes a boulder from the asteroid using robotic arms, it will further examine how the altered mass balance influences the asteroid’s orbit. Eventually, however, the probe will depart with its boulder, returning it to the cis-lunar orbit and studying it on the way. It’s expected that the rock will be in place by late 2025, after which the manned mission will follow using NASA’s Orion spacecraft.
Source: http://truthisscary.com/2015/03/nasa-attempt-to-knock-asteroid-out-of-its-natural-orbit-to-bring-it-closer-to-earth/
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