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NASA | Sentinels of the Heliosphere

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Uploaded by on Aug 4, 2009

What NASA calls its 'Heliophysics Observatory' is an impressive fleet of spacecraft designed (often with international partnership) to study the relationship between the Sun, Earth, and Solar System. Flying in an array of trajectories and orbits, many of these satellites do not take images in the conventional sense but record fields, particle energies and fluxes in situ to give mankind a better understanding of space weather and space environments.

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Top Comments

  • A nicely done video; It really helps you get a three dimensional grasp of some of our satellites locations.

  • This video is breathtaking, I've watched it from time to time to cheer me up after a bad day... thankyou

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All Comments (479)

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  • @bigbengamer do a simple search, 'radiation shielding materials' .....watch how 'aluminium' barely gets a mention. wood is better than aluminium even

    baffles me why a radiologist wears a lead impregnated apron and not a aluminium impregnated one, afterall, aluminium weights a lot less, when there are such knowledgeable people as yourself on the planet :/

  • @whackitov And to answer your question, Lead absorbs radioactive rays, while aluminium can actually deflect it from whatever surface it is covering. Why do you think radiation suits are not made out of lead? They are light and shiny. They can also get away with such a thin layer of protection on the spacecraft because they do not have to worry about wind resistance in space. Your radiation specialist friend is not an astrophysicist.

  • @whackitov My friend, keep in mind that you came to this video calling NASA bullshit. You either are too stupid to let alone what you don't like, or you're intentionally coming here looking to troll people. I think we've entertained each other enough here, I for one am moving on. Good day to you and your aggressive and poorly outlined approach to your conspiracy theories.

  • @bigbengamer no, you THINK im over the precipice, but your thoughts contain nothing more than nasa's propaganda, you dont have the wit to think for yourself or do your own research, you sit happily digesting their bullshit without question, like a cow in the field....munch munch munch....faaart.....munch munch munch, but there aint nothing happening between the ears

  • @whackitov HAHAHAHAHAHAHAHAHAHAHAHAHAHAHA­HAHAHAHAHAHAHAHAHAHAHAHAHAHAHA­HAHAHAHAHAHAHAHAHAHAHAHAHAHAHA­HAHAHAHAHAHAHAHAHAHAHAHAHAHAHA­HAHAHAHAHAHAHAHAHAHAHAHAHAHAHA­HAHAHAHAHAHAHAHAHAHAHAHAHAHAHA

    Sorry, my H and A keys got stuck. You're citing YouTube videos that say the moon landing was fake? Now I KNOW You're a little over the precipice...

  • nasa IS bullshit, no way did they ever put a man on the moon, it was a hollywood-esque stunt. the evidence is right here on youtube if you care to get your tongue out of their ass and have a look

  • @whackitov I have no qualifications, but then again, I'm not calling NASA bullshit...

  • @bigbengamer the fact that the information comes from someone i know doesnt detract from what im saying in anyway, his qualification are professional qualifications, just because your hearing him through me invalidates nothing......what are your qualifications?

  • @whackitov oh, someone you know. That adds complete credibility to what you're saying. My bad.

  • @bigbengamer no, i have a friend works at trawsfynydd nuclear power station, he does have extensive knowlege of radiation shielding.....two millimeters of aluminium is not adequate by anyones science, the apollo craft had even less than that

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