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The surface of Mars is still mostly unsurveyed and the researchers' confidence in the probability of no nonterrestrial artifacts is low
After taking into account a variety of potential biases, such as "the universe is teeming with life" or "life is rare,"
Answers to this question could include life is rare, intelligent cultures inevitably destroy themselves, intelligent beings have not gotten here yet or they are here but not revealing themselves. Even without actual contact, like us, other civilizations could be sending unpiloted probes to quietly peek at our civilization.
The surface of Mars is still mostly unsurveyed and the researchers' confidence in the probability of no nonterrestrial artifacts is low.
Originally posted by Aestheteka
This is the most interesting thread I have seen in a vey long time and suggests massive changes to our Weltanschauung (and AusWeletanschauung ) .
I wonder if that was why it was knocked off the new threads list within a matter of minutes with a bunch of single paragraph posts?
Nowhere in the post does it suggest that we are alone. In fact it constantly reinforces the opposite, from :
After taking into account a variety of potential biases, such as "the universe is teeming with life" or "life is rare,"
to
Answers to this question could include life is rare, intelligent cultures inevitably destroy themselves, intelligent beings have not gotten here yet or they are here but not revealing themselves. Even without actual contact, like us, other civilizations could be sending unpiloted probes to quietly peek at our civilization.
to (and this is without doubt the most suggestive of all)
The surface of Mars is still mostly unsurveyed and the researchers' confidence in the probability of no nonterrestrial artifacts is low.
which, when read by those speed-reaing or those not too well versed on the intricacies of language is actually stating that the probability of finding non-terrestrial artefacts on Mars is HIGH.
Hopefully more people will see this thread and it won't be succesfully buried because that really annoys me. It's a good tactic, I'll gant you that, but it is really, really annoying.
Originally posted by wagnificent
Michio Kaku described that exact idea of self-replicating probes as the most efficient way to explore the universe. Here is the link to the video; I'm sure many of us on ATS are pretty familiar with it, but it's still very interesting.
youtu.be...
Originally posted by cloudyday
I wonder if aliens might have satellites spying on us the same way we have satellites around Jupiter and Saturn, and this article relates to that idea.
www.spacedaily.com...
reply to post by 1questioner
Our scientists say that the Moon was created by either a collision with another space body and then captured in orbit. Or it was created at the same time as the Earth and spun-off into orbit around Earth. However, if it was created by a collision in space, where is the debris field where the supposed collision took place? And if it did collide with the Earth, how could it have a near perfect circular orbit? Physics would dictate that if a collision happened and the Moon was then captured by the Earth's gravity, the orbit of the Moon would be elliptical--not circular. And when the Apollo moon rocks and dust were analyzed, they proved to be older than the age of the Earth and their chemical composition was like nothing that came off the surface of the Earth.
Originally posted by charlyv
reply to post by 1questioner
Our scientists say that the Moon was created by either a collision with another space body and then captured in orbit. Or it was created at the same time as the Earth and spun-off into orbit around Earth. However, if it was created by a collision in space, where is the debris field where the supposed collision took place? And if it did collide with the Earth, how could it have a near perfect circular orbit? Physics would dictate that if a collision happened and the Moon was then captured by the Earth's gravity, the orbit of the Moon would be elliptical--not circular. And when the Apollo moon rocks and dust were analyzed, they proved to be older than the age of the Earth and their chemical composition was like nothing that came off the surface of the Earth.
I think that it is a captured object. If you look at the earth from space from the middle of the Pacific, the ring of fire surrounds the globe and you are looking at almost all ocean.
Also, on the Moon, the Mare Imbrium area (with much younger surface features) covers a huge part of the moon. It is possible we had a 'bump', not at such cosmic speed, but enough to melt the surfaces that contacted.
The moon not being uniformly dense, and perhaps with an inner bulge of theits core towards the surface of impact, and most likely rotated to that position by coming so close to the earth.... This is why we have a 1:1 rotation with it, as the gravitational attraction of it's lopsided core prevents it from rotating on it's own axis.
I think most scientists agree today that the moon could not have come from the earth, because of the very things you mentioned about age and material types not having any matches.edit on 9-11-2011 by charlyv because: clarityedit on 9-11-2011 by charlyv because: (no reason given)
They do have a satellite spying on us and it is so obvious that no one wants to admit it. It's our Moon.
Our scientists say that the Moon was created by either a collision with another space body and then captured in orbit.
Originally posted by ProudBird
reply to post by 1questioner
Not really....after years of examination, the impact theory is the most viable and plausible.
They do have a satellite spying on us and it is so obvious that no one wants to admit it. It's our Moon.
No, the Moon is quite natural.....and, was formed well in the beginning of the Solar System, as the planets were coalescing into spheres.
Our scientists say that the Moon was created by either a collision with another space body and then captured in orbit.
The material from that collision of Proto-Earth with another large proto-planet (possibly about the size of Mars) flung a ring of debris out into orbit....this accreted gradually and was sufficient in mass to form the spherical shape of the Moon. Over 4 1/2 billion years a go there was a lot of junk in the Solar System, and many meteor impacts resulted.
The Moon, as it collected and cooled, was in a closer orbit then....the mass of Earth and the Moon combine to orbit about a common barycenter. This center has shifted over time, as the Moon has gradually spiraled farther away...the Moon "robs" the rotational energy of the Earth, to give it the impetus to raise its orbit higher. The Earth's period of revolution on its axis was quite a bit faster than it is today....many billions of years ago.
Origin of the Moon:
Moon Formation (on Vimeo)
Do you realize that there is not one scientifically peer-reviewed computer simulation that can account for the circular orbit of the Moon using the captured scenario? In fact, there is not another moon that we can see that has a near perfect circular orbit. They all that have elliptical orbits.
Originally posted by charlyv
reply to post by 1questioner
Do you realize that there is not one scientifically peer-reviewed computer simulation that can account for the circular orbit of the Moon using the captured scenario? In fact, there is not another moon that we can see that has a near perfect circular orbit. They all that have elliptical orbits.
The universe was not built on computer simulations, however there are many that can account for circular orbits of the moon. These simulations assume that earth and moon approached each other going the same direction and close to the same speed.
And other moons not having nearly perfect circular orbits?, well I can name 12 of them out of the 64 moons of Jupiter.....
I really meant to say that we cannot see any moon with the exact orbital mechanics of our moon. That means both a near perfect circular orbit and a geo-synchronous rotation.
.......is an orbit around the Earth with an orbital period that matches the Earth's sidereal rotation period.
Distance at perigee ~362600 km (356400-370400 km)
Distance at apogee ~405400 km (404000-406700 km)
Europa orbits Jupiter in just over three and a half days, with an orbital radius of about 670,900 km. With an eccentricity of only 0.009, the orbit itself is nearly circular.
However, with all due respect, are we to believe that 100% of the debris caused by this collision coalesced into making the moon?