UK engineers are developing a system to harpoon rogue or redundant satellites and pull them out of the sky.
It is a response to the ever growing problem of orbital junk - old pieces of hardware that continue to circle the Earth and which now pose a collision threat to operational spacecraft.
The harpoon would be fired at the hapless satellite from close range.
A propulsion pack tethered to the projectile would then pull the junk downwards, to burn up in the atmosphere.
"Space has become a critical part of our infrastructure - from weather forecasting and Earth observation, to GPS and telecommunications," said the harpoon’s designer, Dr Jaime Reed, from Astrium UK.
"Space junk poses a real threat to these vital services if we do nothing about it, and so it’s very important we develop capture technologies to remove some of this material. Studies have shown that taking out just a few large items each year can help us get on top of the problem."
Dr Reed’s proposal is for a barbed spear about 30cm in length. It would be mounted on a "chaser satellite" that would edge to within 100m of a junk object.
Pictures sent to the ground would then be used to assess the target, before the chaser was moved to within perhaps 20m to take a shot.
Once the harpoon is hooked through the skin of the rogue satellite or rocket stage, the chaser could either pull on a trailing polymer cord itself or deploy a separate thruster unit to do the job of dragging the aimless drifter towards Earth.
This is research in its very early stages. The BBC has filmed firing tests of a prototype harpoon at Astrium UK’s Stevenage base.
Breaking: Google gives new meaning to “Orwellian” 2015-03-02 18:14
Becomes Ministry of Truth
“…if all records told the same tale — then the lie passed into history and became truth.” (1984, George Orwell)
The New Scientist has the stunning story (2/28/15, “Google wants to rank websites based on facts not links,” by Hal Hodson):
“THE internet is stuffed with garbage. Anti-vaccination websites make the front page of Google, and fact-free ‘news’ stories ...
Boris Nemtsov, Putin Foe, Is Shot Dead in Shadow of Kremlin - A Staged Shooting? 2015-02-28 22:37 NY Times: Boris Nemtsov, Putin Foe, Is Shot Dead in Shadow of Kremlin
Mr. Nemtsov, a former first deputy prime minister of Russia, was killed in central Moscow in the highest-profile assassination in Russia during the tenure of President Vladimir V. Putin.
A Staged Shooting?
Why does the dead body of fitness enthusiast Boris Nemtsov have a pot belly?
The Anti-New York Times doesn't ...
Spielberg's Hoax - The Last Days of The Big Lie 2015-02-28 20:18 Editor's Note: This is an absolutely SHOCKING video. How this has gone largely unchallenged for such a long time, is a remarkable testimony to the trustworthiness of gullible but good-hearted people. Watch it all the way to the end and learn something new about the remarkable lies and falsehood in our world.
If the video is blocked in your country, see ...
Holocaust, Hate Speech and Were the Germans so Stupid? 2015-02-28 20:31
Description form YouTube:
This is an updated version of the video which was taken down by YouTube following a spurious copyright-infringement claim. It addresses issues regarding claims that Zyklon B in liquid form gives off fumes at temperatures below 0º C.
As the world approaches the brink of a new Middle East crisis this time involving Syria, clearly at the behind-the-scenes ...