Something must be done to deal with the estimated 100 million bits of man-made space junk circling the planet, and Japan is taking the lead. But can we do? Shoot it with a laser? Invent Wall-E-like robots to collect it? Nah… let’s just blast a big net into space.
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Space junk
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OK, by this point we all know Gravity was beautiful and terrifying and, mercifully, complete fiction
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Sure, we can pull space junk out of orbit with lasers or use it to cobble together new satellites, but if engineers at space firm Astrium UK have their way, space trash could be disposed of with the help of harpoons. Currently in a conceptual stage, the system is designed to shoot defunct satellites or other debris with a harpoon mounted on a “chaser satellite” and use a tethered propulsion pack to send the rubbish in an atmospheric descent where it’ll burn up. Since the projectile could shoot straight through targets and result in even more garbage, it’s been fashioned with a crushable portion to reduce its speed upon impact. There’s no concrete word on when the outfit’s solution might be put in action, but they’ll present their work on Wednesday at the 63rd International Astronautical Congress in Naples (Italy, not Florida, mind you). If you can’t wait to see the harpoon at work, head past the break to catch tests of an Earth-based prototype.
Continue reading UK engineers developing harpoon that could help space junk meet a fiery end
UK engineers developing harpoon that could help space junk meet a fiery end originally appeared on Engadget on Mon, 08 Oct 2012 05:21:00 EDT. Please see our terms for use of feeds.
The International Space Station is executing an evasive maneuver in a few hours, following the protocol for when there’s more than a one in 10,000 chance of a space collision. More »
The Phoenix Frankenprogram to harvest the corpses of expired satellites and cobble together new ones seemed like one of DARPA’s more daft ideas, but this one has actually kicked off its first phase of development. The plan is to first launch a service craft — replete with robotic arms and enough processing horsepower to work independently if needed — followed by the tiny base-unit skeleton satlets. The service mothership would dip into an orbital area called the “graveyard”, grabbing pre-chosen cadavers and picking off usable parts, especially valuable antenna arrays, with its robo-limbs. Those parts would be jury-rigged to the bare-bones units, creating usable Pentagon satellites and saving the $10,000 per pound launch cost. So far, a $2.5 million contract to develop the needed technology has been put in place, and bids for the no-frills satlets went out last week. Plenty of dirty work is still needed, so check the video after the break to see if the overly-elaborate plan can un-moot $300 billion of orbiting cold metal.
Pentagon starts Phoenix trial to harvest defunct satellites, MacGyver new ones from orbit originally appeared on Engadget on Thu, 28 Jun 2012 19:46:00 EDT. Please see our terms for use of feeds.
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