A Vision Network comments on Nasa Developing Space Harpoon

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(Free-Press-Release.com) January 3, 2012 -- A Vision Network comments on Nasa Developing Space Harpoon
Nasa is developing a harpoon capable of taking samples from comets. The space agency has already built a prototype capable of launching test harpoon tips across a distance of a mile (1.6km). The engineers believe it would be safer to collect comet material using the equipment rather than trying to land on the celestial bodies. A Vision Network commented saying, “This is hugely exciting.”

Nasa said that the samples could reveal the origins of the planets and how life was created on Earth. Comets are made up of frozen chunks of ice, gas and dust. They orbit the sun and, if they are close enough to the star, project a tail in the opposite direction made up of ionised gases. “We are learning more and more in recent years, discoveries from these samples will help further our knowledge of what it out there” says A Vision Network Managing Director.
To gather more material, the agency is developing a sample-collecting space harpoon which could be projected "with surgical precision" from a spacecraft hovering above the target. Experts said this would avoid the risk of trying to anchor the craft to a comet's rugged surface. Comets are much smaller than planets and have much lower gravity as a consequence, so a landed spacecraft would have to find some way of attaching itself to the object to avoid floating off.

“The Innovative nature of the NASA scientists is something we here at A Vision Network really connect to, as we too strive to be the best and reach the stars” says A Vision Network, “of course NASA have a better chance of reaching the stars than we do but that wont stop us trying.”
Engineers at Nasa's Goddard Space Flight Center in Greenbelt, Maryland, have built a trial harpoon that is 6ft (183cm) tall. The bow is made out of a pair of springs normally used to provide the suspension for trucks. The bow string is made out of steel cable half an inch thick. It can fire projectiles at speeds of more than 100ft per second. Test projectiles are fired into large drums filled with sand, rock salt, ice or pebbles.
A Vision Network concludes “we wish NASA all success on this mission and hope they succeed”.

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