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If they are advanced enough to pass our way, they would be robots. They might need replacement parts. They would need metals and perhaps some plastic to build the replacement parts. Earth has plenty and the factories to manufacture them.
However, time and distance make such visit unlikely -- if another technological species exists at all.
Surely a space faring species would have replication technology so as not to rely on the need for stopping every time they need something.
Also if they did need something in the way of natural resources why would they stop at Earth and expose themselves to conflict and danger when they could just go to any of the other planets and get what they need.
Surely a space faring species would have replication technology so as not to rely on the need for stopping every time they need something.
Also if they did need something in the way of natural resources why would they stop at Earth and expose themselves to conflict and danger when they could just go to any of the other planets and get what they need.
I have thought about this since I posted here. Aliens, no matter how advanced they are, still have to follow the laws of physics. They might be tougher than us and able to withstand up to, say, 300 degrees. But at 800 degrees, they would probably burn up or at least malfunction. Same idea with pressure. They can't just go to any planet to find resources. They won't make it on planets are very hot, or have very high pressure. And these types of planets are everywhere. Earth, at one time, was burning hot and uninhabitable even for advanced aliens.
It would be safer for them to go to earth and take over than to go to, say, Venus or Mercury. I would say a planet like earth would be on any alien's list to go for resources.
What is replication technology? You can't just wave a wand and something magically appears. Theoretically, you can transform energy into matter and make everything you want. I think the Big Bang is an example of energy (a big explosion) transforming into matters -- the universe and everything in it.
Aliens, no matter how advanced they are, still have to follow the laws of physics.
The laws of physics are only as good as our understanding of the way the Universe works. It is very arrogant of us to believe we have discovered all that is and ever will be. Currently, there are some flawed laws many of which are still being used, even though they were developed in the 19th century or early 20th centuries.
Now we understand more and have discovered more, these laws still have not been changed to reflect the new ideas proved by experimentation. There are still plenty of things which we dont understand and which we have no 'laws' to explain, the paranormal is just one example.
So, we assume there is only one dimension, because if there is more than one, then most of the laws of physics will have to be rewritten to account for the phenomena which will be discovered and observed when we realise there are other realities, not just our own.
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What is replication technology?
Yes, you can just "wave a wand" if the technology and method for creating matter is understood. It is highly likely that if man gets to live another few generations we will understand all of this. So ET technology which is probably centuries ahead of ours has almost certainly got this replication technology as a normal process.
The only thing which is on Earth which is likely to be of any use is the environment which we are quickly destroying and the human species. Humans might have some DNA or abilities which ET might like for themselves. Or come to that, maybe we are food or good at being slaves for their off-world labour camps.
I have thought about this since I posted here. Aliens, no matter how advanced they are, still have to follow the laws of physics. They might be tougher than us and able to withstand up to, say, 300 degrees. But at 800 degrees, they would probably burn up or at least malfunction. Same idea with pressure. They can't just go to any planet to find resources. They won't make it on planets are very hot, or have very high pressure. And these types of planets are everywhere. Earth, at one time, was burning hot and uninhabitable even for advanced aliens.
It would be safer for them to go to earth and take over than to go to, say, Venus or Mercury. I would say a planet like earth would be on any alien's list to go for resources.
What is replication technology? You can't just wave a wand and something magically appears. Theoretically, you can transform energy into matter and make everything you want. I think the Big Bang is an example of energy (a big explosion) transforming into matters -- the universe and everything in it.
And Mars would be much easier still, due to its lower gravity.
Even better would be asteroids - their far lower gravity would entail much less energy required to remove resources than from a planet. Also, asteroids are mixed assortments of minerals, whereas on planets such as Earth, different substances (mostly heavy ones) are largely tucked away deep below the surface of the planet, making extraction all the more problematic.
Beyond that, if there are scattered civilizations in the galaxy, they must be very rare (else, as Fermi noted, we'd see evidence of them). And if they're very rare, the odds are long that they'd come to our little solar system.
I think aliens will be similar to us. We are made of space dust just like they will be.
They will come here either to explore or need our planet because their system is dieing.
There is life in our solar system. We just didn't find it yet, some bacteria is all there needs to be. Intelligent is out there somewhere someday we will find them.
And Mars would be much easier still, due to its lower gravity.
Even better would be asteroids - their far lower gravity would entail much less energy required to remove resources than from a planet. Also, asteroids are mixed assortments of minerals, whereas on planets such as Earth, different substances (mostly heavy ones) are largely tucked away deep below the surface of the planet, making extraction all the more problematic.
Beyond that, if there are scattered civilizations in the galaxy, they must be very rare (else, as Fermi noted, we'd see evidence of them). And if they're very rare, the odds are long that they'd come to our little solar system.
I want there to be technological species like us as much as anyone else, but the evidence of their existence just isn't there. Unless an advanced species can somehow overcome the limitation of light speed, interstellar travel would take too long for any human-like beings. The solution is sending robots. And we have been doing that since the very first satellites. Those satellites are now leaving the solar system, sending physical evidence of our existence to the rest of the galaxy. A million years from now we might or might not be here, but those satellites would still be out there to let any potential civilization know about us.
Similarly, I would expect an older and more advanced species, if they exist or existed, to have sent physical evidence of their existence throughout the rest of the galaxy like we did. And if they have/had been around longer than us, they surely could have sent hundreds or even thousands of satellites to far corners of the galaxy. But so far, we have not detected any.
I am curious to know if you believe the government will tell you? Why do you think the space station is up there?
How do you explain objects that change direction and velocity as seen on this ? https://youtu.be/yBkpYN0Qgic
I am curious to know if you believe the government will tell you? Why do you think the space station is up there?
How do you explain objects that change direction and velocity as seen on this ? https://youtu.be/yBkpYN0Qgic
Did you really think it was that difficult to see something the size of a football field at a distance of 200 miles with a telescope?
As for YouTube videos, I don't bother trying to explain them. There are certainly things that cannot be explained. I do not slap the label 'Aliens!' on such things out of default, because I understand basic logic.
You know, insinuating that X must be true because the government denies is utterly illogical. If you asked NASA if it currently has a warp drive, a manned presence on Pluto, and a secret launch site at the South Pole that it uses for jaunts to meet our Alien Overlords up in orbit, the space agency would undoubtedly deny all three. Does that mean you believe in all three of those things? Because that's your 'logic' applied.
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