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originally posted by: ISeekTruth101
a reply to: JadeStar
Astronomers have found a planet thought to be the oldest planet in the known universe at around 13 billion years old. And they have found planets that are still forming.
At 4.5 billion years old, the Earth is less than half the age of the universe and so you could consider it (and the other planets in our solar system) as young.
originally posted by: ISeekTruth101
You do realise that we have theories today, by NASA, that might even be implemented soon, by NASA, regarding FTL - Faster than light travel.
No one is breaking the law here, and none of these scientists are trying to break the law. We are just looking for ways around it.
Hence alien civilisations may have already found a way around it, and implemented, and have been visiting earth.
originally posted by: wmd_2008
a reply to: SPECULUMI believe 100% Aliens are out there, but does Mog from Zog visit or has he visited I don't think so, the same numbers that make a universe full of life make it difficult for them to exist at the same time and close enough to each other to visit.
originally posted by: JadeStar
originally posted by: ISeekTruth101
You do realise that we have theories today, by NASA, that might even be implemented soon, by NASA, regarding FTL - Faster than light travel.
No one is breaking the law here, and none of these scientists are trying to break the law. We are just looking for ways around it.
Correct. But do you understand what they are actually trying to test in those experiments? And do you understand that so far there is no conclusive proof that there is a way which we (or anyone else) could utilize to get around it?
I suggest that if you don't understand the experiments or want to know their current status you listen to this episode of Planetary Radio which goes into it: Miguel Alcubierre, Inventor of Warp Drive?
The difference between you and I is that I have an advanced astrophysics background and know what is actually being tested in the NASA experiments involving Dr. Harold "Sonny" White.
I won't bore you with the math or the hurdles however....
We're a LOOOOONG way from Warp Drives even if these experiments bore fruit (which they haven't).
Hence alien civilisations may have already found a way around it, and implemented, and have been visiting earth.
If that were the case we'd have a mountain of better evidence in the form of the repeated detections of space/time being warped in a linear way over time nearby from travelling craft but gravitational microlensing astronomy and other branches of astronomy (ie: gamma ray astronomy) doesn't either so your warp drives if they are in use, aren't being used in our neck of the woods and certainly are't being used to send craft here to abduct people in the middle of the night. If such abductions are happening outside the person's own mind, they have a cause much closer to home.
originally posted by: JadeStar
Correct. But do you understand what they are actually trying to test in those experiments? And do you understand that so far there is no conclusive proof that there is a way which we (or anyone else) could utilize to get around it?
I suggest that if you don't understand the experiments or want to know their current status you listen to this episode of Planetary Radio which goes into it: Miguel Alcubierre, Inventor of Warp Drive?
The difference between you and I is that I have an advanced astrophysics background and know what is actually being tested in the NASA experiments involving Dr. Harold "Sonny" White.
I won't bore you with the math or the hurdles however....
We're a LOOOOONG way from Warp Drives even if these experiments bore fruit (which they haven't).
Hence alien civilisations may have already found a way around it, and implemented, and have been visiting earth.
If that were the case we'd have a mountain of better evidence in the form of the repeated detections of space/time being warped in a linear way over time nearby from travelling craft but gravitational microlensing astronomy and other branches of astronomy (ie: gamma ray astronomy) doesn't either so your warp drives if they are in use, aren't being used in our neck of the woods and certainly are't being used to send craft here to abduct people in the middle of the night. If such abductions are happening outside the person's own mind, they have a cause much closer to home.
originally posted by: JadeStar
originally posted by: ISeekTruth101
a reply to: JadeStar
Astronomers have found a planet thought to be the oldest planet in the known universe at around 13 billion years old. And they have found planets that are still forming.
At 4.5 billion years old, the Earth is less than half the age of the universe and so you could consider it (and the other planets in our solar system) as young.
That is correct and not like some major revelation either. We astronomers (and astronomy students) know and have known our solar system is on the young side (if our solar system were a person it would be a tween).
That's not the issue and still would not be the issue even if we found microbes on Mars or an exoplanet.
The issue is that we's still have no scientific evidence of any older civilizations out there. The moment we do (say by detecting one on an exoplanet somewhere) then we'll have evidence that technological intelligence may be common (since the chances of our finding it if it were rare would be very very small both due to space and due to time).
But even if we did find a crazy advanced civilization on planets around a nearby star system we STILL would have no evidence that such an advanced civilization travels amongst the stars.
That would require us detecting such travel in some form or another.
We're simply not there. Stay tuned, someday we might but those headlines are ones of tomorrow.
The most important factor in the Drake Equation is "L" the longevity of technological civilizations. It could be such that technological civilizations don't last long. If that's the case we could be surrounded by dead planets which once had civilizations and we're next to the trash can of history.
Since you like to use us as an example. We've had nuclear weapons, weapons which could wipe out everyone on Earth only for less than 100 years out of the hundreds of thousands of years homo sapiens have been around. Trust us not to use them in the next 65 million years (the lifespan of the dinos)?
originally posted by: andy06shake
a reply to: wmd_2008
Thats true but its also worth keeping in mind that today's science fiction in tomorrows science fact.
originally posted by: wmd_2008
a reply to: ISeekTruth101
Well remember just because something is possible in the sci-fi world , it doesn't mean it's possible in the real world.
It's fun to imagine stuff but it's productive and scientifically relevant to actually investigate and calculate stuff.
Where is the logic in this... if we are already venturing into space
We've barely done so.
Of course not. However the universe has physical laws which are fairly well understood and universal in nature. The same laws will apply to aliens as apply to us the same energy requirements to travel near the speed of light or warp space to get around the speed of light will be required of any civilization regardless of the way they measure it or what kinds of energy they have access to.
Those energy requirements are not trivial so space travel between stars is probably not that trivial either. That's not speculation. That's physics.
Nope, you're linking two things which probably should not be linked.
Did dinosaurs travel to the stars? They were probably "alien life" to someone else for millions of years.....
Perhaps it is because technological intelligence is not inevitable.
Evolutionary biology is hard.
I and other astronomers have done that match and you're right we are young compared to most of our galaxy. It's a point I made on this forum and the space exploration one countless times.
However where your "logic" goes off the rails is assuming that life always leads to intelligent life (we don't know this, so you can't know this either) or that intelligent life always leads to technological intelligent life (we don't know this, so you can't know this either).
Lots of assumptions in your "logic". Too many for it to be considered sound reasoning. It's great speculation though.
originally posted by: Blue Shift
What's the difference between admitting that there is a probability that there are aliens somewhere out there in the vast reaches of space, and truly believing that they actually exist? Because to me, hypothetical aliens are just that... hypothetical. In fact, even if there are some aliens in some distant galaxy that actually exist, since we'll never, ever have evidence of them in any way, they qualify as hypothetical, and don't practically exist.
I guess I don't know why so many people have such a hard time accepting that along with the chance that aliens exist, there is also a chance that aliens absolutely do not exist anywhere in the universe. Earth is the only game in town.
This has nothing to do with the "arrogance" so often mentioned in these kinds of discussions. If anything, Earth being the only planet with life on it in the universe is humbling, and lonely. It means that when we're gone, there will be no one to remember us, and the universe itself will vanish.