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@evoman3957 wrote:

https://en.wikipedia.org/wiki/Escape_velocity

 

The above is not as difficult to understand as it originally looks ( ignore the formula ) and scroll down to the chart. The "Escape Velocity" of Earth is approx. 25,000 miles per hour, the "Escape Velocity" of Saturn is approx. 3 times that of Earth.......so 75,000 miles per hour. That means that if anybody landed on Saturn, they would have to be able to travel at a speed of 75,000 miles per hour; in order to get off of it again. As we haven't been able to attain speeds anywhere near that, it might be a good idea to start there.  If there are ANY life forms out in the universe, they will either be stuck on their "Rock"...as we are; or they will be way ahead of us and the only reason they would want to come here, would be to colonise our Planet...........because the events outline in my previous thread will happen to their Sun also.

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Thank you.  And I wasn't doing to bad till I got to 'Deriving escape velocity using calculus.'

I think Professor Stephen Hawking is correct to believe that an Alien culture, looking for resources to survive, would be a ''BAD'' encounter, and we need to be prepared for that. (Whether we can do anything about it, remains to be seen.)

However, we also need to be prepared to recognize a ''Good'' encounter, prior to jumping to conclusions.  We are intelligent beings, beyond our instinct's, we must assume it's possible that others are past our greed and ignorance. This is quite an EVIL place (well Hell for so many) They might think they cant cope with that. Who would blame them?