Name: Space-launched missiles are the best protection from asteroids, astronomer says
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Space-launched missiles are the best protection from asteroids, astronomer says

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FollowPlanetary protection starts beyond the planet.Eric MackContributing EditorContributing editor Eric Mack covers space, science, climate change and all things futuristic. His encrypted email for tips is ericcmack@protonmail.com.2 min readAn Italian astronomer says the best defense against potential killer asteroids from space is solid offense, also based in space. The notion of protecting the planet from menacing space rocks by blasting them with missiles is an old trope of science and disaster fiction, but has been arguing for decades now that where those missiles are launched from matters. Maccone, both an astronomer and a mathematician, the basics of how missiles stationed at Earth-moon -- spots in space where the gravity of the Earth and moon effectively cancel each other out, allowing spacecraft to remain relatively stationary -- could be used to deflect asteroids. In a &nbsp;this week, Maccone further refines the math underlying the system and expands on the concept to allow for automatically blasting off a series of missiles to ensure a threatening asteroid is definitely deflected (or completely obliterated). "A sufficient number of missiles could thus be launched in a sequence from the Earth-Moon Lagrangian points L1 and L3 with the result that the SUM of all these small and repeated deflections will finally throw the NEO off its collision hyperbola with the Earth," Maccone writes. Maccone has applied for a patent for the software that models such space-fired missile deflections, but he notes that there's still more work to be done: "Many engineering details about the missiles shot from L1 and L3, however, still have to be implemented into our simulations, partly because they are classified." So until all that minutiae is finally worked out, we could still be forced to rely on a Bruce Willis-like hero to manually detonate a bomb on any future killer asteroid, Armageddon-style (cue the Aerosmith...). from Follow&nbsp;&nbsp;to stay up to date with all the latest space news this year. You can even add it to your own Google Calendar.&nbsp;&nbsp;Get the CNET Science newsletterUnlock the biggest mysteries of our planet and beyond with the CNET Science newsletter. Delivered Mondays.

FollowPlanetary protection starts beyond the planet.Eric MackContributing EditorContributing editor Eric Mack covers space, science, climate change and all things futuristic. His encrypted email for tips is ericcmack@protonmail.com.2 min readAn Italian astronomer says the best defense against potential killer asteroids from space is solid offense, also based in space. The notion of protecting the planet from menacing space rocks by blasting them with missiles is an old trope of science and disaster fiction, but has been arguing for decades now that where those missiles are launched from...

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CNET, formerly Computer Network, is an American media website that publishes reviews, news, articles, blogs, podcasts, and videos on technology and consumer electronics globally. Founded in 1994 by Halsey Minor and Shelby Bonnie, it was the flagship brand of CNET Networks and became a brand of CBS Interactive through CNET Networks' acquisition in 2008.

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Space-launched missiles are the best protection from asteroids, astronomer says

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