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John Byrne
Grumpy Old Guy
Joined: 11 May 2005
Posts: 132292
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| Posted: 26 June 2018 at 5:15am | IP Logged | 1
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Maybe this is why he thinks we need a Spaaaaace Foooorrrrrrccceeee!!!!
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Rebecca Jansen
Byrne Robotics Member
Joined: 12 February 2018
Location: Canada
Posts: 4525
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| Posted: 26 June 2018 at 8:30am | IP Logged | 2
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He is completely alien to me.
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Thomas Woods
Byrne Robotics Member
Joined: 09 June 2004
Location: United States
Posts: 1356
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| Posted: 26 June 2018 at 10:23am | IP Logged | 3
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Covfefe is his alien contact.
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Petter Myhr Ness
Byrne Robotics Member
Joined: 02 July 2009
Location: Norway
Posts: 3826
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| Posted: 26 June 2018 at 10:52am | IP Logged | 4
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The answer to the Fermi "paradox" is blindingly obvious, of course. Why aren't they here? Same reasons we're not there!!--
My thoughts precisely. Space is so vast. Billions of galaxies, but it's unlikely we'll ever make it as far as another solar system in our own galaxy within a lifetime, let alone visit another.
I still firmly believe there's life out there, though.
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Thomas Woods
Byrne Robotics Member
Joined: 09 June 2004
Location: United States
Posts: 1356
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| Posted: 26 June 2018 at 11:11am | IP Logged | 5
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I wondered if it would be possible to have another earth
like planet in our own solar system that was in our same
orbit, but on the exact opposite side of the sun, so we
never saw it.
That happening by chance would be impossible, but maybe
if it were planned...
Edited by Thomas Woods on 26 June 2018 at 11:12am
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Conrad Teves
Byrne Robotics Member
Joined: 28 January 2014
Location: United States
Posts: 2175
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| Posted: 26 June 2018 at 11:52am | IP Logged | 6
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>>I wondered if it would be possible to have another earth
like planet in our own solar system that was in our same
orbit, but on the exact opposite side of the sun, so we
never saw it. <<
Technically yes, but long-term no. The point opposite us on our orbit around the Sun is a Lagrange Point (L3). Only small masses in the Lagrange points L4 and L5 (co-orbiting 60 degrees ahead and behind a planet on its orbit) are stable, the others are long-term unstable. The others you'd need engines to tweak your orbit periodically to keep you there. This is witnessed in the solar system by (for instance) the Trojan asteroids co-orbiting 60 degrees in front and behind Jupiter. The problem with the other three is they are just too easy to perturb and have an orbiting body fall out of synchronization. |
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John Byrne
Grumpy Old Guy
Joined: 11 May 2005
Posts: 132292
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| Posted: 26 June 2018 at 1:25pm | IP Logged | 7
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Technically yes, but long-term no. •• Ah-hhhh, wadda you know!! 
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Conrad Teves
Byrne Robotics Member
Joined: 28 January 2014
Location: United States
Posts: 2175
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| Posted: 26 June 2018 at 1:47pm | IP Logged | 8
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As an aside, I just adore the Dove and Phoenix spacecraft from that movie.
Pic->LinkAlso pretty sure that's where I learned the word "Doppelgänger."
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John Byrne
Grumpy Old Guy
Joined: 11 May 2005
Posts: 132292
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| Posted: 27 June 2018 at 11:40am | IP Logged | 9
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Meanwhile...
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Rebecca Jansen
Byrne Robotics Member
Joined: 12 February 2018
Location: Canada
Posts: 4525
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| Posted: 27 June 2018 at 1:34pm | IP Logged | 10
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I'm going to start looking at this forum in a mirror so I can pretend I've been to another planet! :^)
Matt Howarth had a comic about two-dimensional starfish-shaped silica based life forms that existed in an accelerated frame of time compared to our own. Vast arcs of history took place for them while we ate a sandwich. When our three-dimensional form interacted with their existence at all, new religions would arise to interpret such occurrences.
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Eric Kleefeld
Byrne Robotics Member
Joined: 21 December 2004
Location: United States
Posts: 4422
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| Posted: 28 June 2018 at 9:26am | IP Logged | 11
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There is no chance of us ever getting visited, because the distances are too great.
So from the Pentagon's standpoint, they can make defense policy as if we are alone.
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