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The first known object to enter our solar system from deep space

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Re: The first known object to enter our solar system from deep space

#111
post #65

Forget about going to Mars, making a probe riding these things will be much more interesting.

I just recently read (well, listened to) Pushing Ice (https://en.wikipedia.org/wiki/Pushing_Ice) which is along these lines. Fantastic story for anyone that likes hard sci fi, it starts off with a moon of saturn suddenly breaking out of orbit and the crew being sent on an intercept mission.

Re: The first known object to enter our solar system from deep space

#112
post #54

Earlier quoted context omitted.

Not sure about a buffer object, but a tether on a reel might work. You harpoon the object, then let it pull the probe, giving lots of slack according to the engineering tolerances of the harpoon in the object (don't want it to come loose), the tether (don't want it to snap), the reel (don't want it to spin apart or get stuck or any one of a number of things), and the probe (don't want it damaged under extreme acceler…

Might be possible, but the tensile strength required may be beyond our material science capabilities. A harpoon impacting an object going 26km/s would experience something like 12,000gs even if you gave it a 1km-long buffer. So your harpoon would have to be rocket-assisted. The problem now is how long does your need to be? The tensile strength to carry the weight of the tether itself may make this impossible.

I think the twisting of the body may also cause problems for the tether.

Re: The first known object to enter our solar system from deep space

#113

"This artist's concept shows [...]" F you artists concept. Drawing fantasy pictures in news messages is not ok. + I'm no grammar guy, nor a native speaker, but "artists's" is wrong, isn't it?

Artist’s is fine (“artist his”), artists’s would be artists’. Depends on how many people worked on the art piece :)

Thanks!

Re: The first known object to enter our solar system from deep space

#114
post #18

"This artist's concept shows [...]" F you artists concept. Drawing fantasy pictures in news messages is not ok. + I'm no grammar guy, nor a native speaker, but "artists's" is wrong, isn't it?

> Drawing fantasy pictures in news messages is not ok. You are aware that astronomers and universities and even NASA regularly collaborate with such artists to create photorealistic simulations of planets, moons, and similar objects, and that lots of information and striving for accuracy goes into making those pictures right? Plus, when they say "artist" they don't mean they asked some Picasso to make a drawing of th…

Not sure what "realistic" means? Has he been there?

People take away this artistic images and believe the world is like this, but it isn't. Same with WW2 movies, people believe war is like in these movies, it isn't. But in one case it's hollywood, in the other case it's a news outlet.

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