Before the post below (by AAP) I would just like to say that planets, planetoids, moons, asteroids and so on are ideal to use as space-craft and as space arks for long-term travel and settlement.
If a civilization was advanced enough, the moon's center can be hollowed out (easily by nukes) or mined, and a city/ space-station built inside it, propulsion fitted, etc.
A sufficiently large space body can absorb small impacts, and once hollowed out, it is a huge stable infrastructure, ready-built and at once ready for building hangar bays, living areas, etc.
I do not believe that humans are the most advanced species, and to assume it is absurd.
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There are certain moons and other objects in our own solar system that defy logic and behave oddly.
Pluto for example, orbits in the opposite direction around the Sun, and has a different angle to the other Planets.
Some have mathematically perfect orbits, unheard of in nature, such as Mars' moon Phobos (with it's obelisk), and our own familiar moon with its strange buildings and emitters.
Other space objects have changed course and speed, such as "comet" Elinin which now orbits the Sun at the same distance as Earth.
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There are millions of alien spacecraft and numerous alien buildings and artifacts both in-use and discarded over most of the planets, including this one.
Also, astoundingly, the Earth's Moon is a billion years OLDER than the Earth, suggesting it came from elsewhere into a "perfect" Earth orbit, its gravity matches that of a much smaller moon, and when it's surface was nuked, it "rang like a bell" and shook as if hollow.
The picture below is from NASA/JPL-Caltech, but if news were to come out about a free-floating Planet changing its course and speed, I doubt it would come from NASA's Jet Propulsion Laboratory.
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Ten planets the size of Jupiter have been found which do not appear to orbit any star.
Original story [Here]
By:AAP with AG Staff May-19-2011
ASTRONOMERS SAY THEY have found a previously inconceivable phenomenon: planets that do not appear to be anchored to a host star but instead wander the heavens unbound.
In a two-year scan of the cosmos, 10 planets with roughly the mass of Jupiter, the largest planet of our Solar System, have been found at such enormous distances from the nearest star that some of them could be said to float freely through the Milky Way.
"Although free-floating planets have been predicted, they finally have been detected, holding major implications for planetary formation and evolution models," says Dr Mario Perez, exoplanet program scientist at NASA's headquarters in Washington DC.
The investigation, published in the science journal Nature, breaks new ground in the science of exoplanets, or planets that exist beyond our Solar System. More than 500 such planets have been identified since 1995. But these are the first that have been found to be orbiting at such a huge range from the nearest star or seem to be "unbound" from it.
Planets not shackled by gravity
The new planets were found in a search that looked for objects ranging between 10 and 500 astronomical units (AU) from a star. The AU is a standard measurement comprising the span between Earth and the Sun, nearly 150 million kilometres.
By comparison, Jupiter is just over five AU from the Sun, while Neptune, the outermost recognised planet, is 30. The theory of planetary foundation says that planets are agglomerations of dust and gas and are enslaved by their stars, doomed to orbit around it until the star runs out of fuel.
The new paper suggests these very distant planets unshackled from their gravitational moorings at an early phase. "They may have formed in proto-planetary disks, and subsequently scattered into unbound or very distant orbits," it says.
The study was written by two teams who used gravitational microlensing to analyse tens of millions of Milky Way stars over a two year period. Under this technique, a foreground star passes in front of a distant, background star. Light from the background star is magnified, carrying a telltale "light curve" that can be filtered from the foreground star.
"The implications of this discovery are profound," says German astronomer Dr Joachim Wambsganss in a commentary also published by Nature. "We have a first glimpse of a new population of planetary-mass objects in our galaxy. Now we need to explore their properties, distribution, dynamic states and history."
Origin: dark-shadowy-line.blogspot.com
If a civilization was advanced enough, the moon's center can be hollowed out (easily by nukes) or mined, and a city/ space-station built inside it, propulsion fitted, etc.
A sufficiently large space body can absorb small impacts, and once hollowed out, it is a huge stable infrastructure, ready-built and at once ready for building hangar bays, living areas, etc.
I do not believe that humans are the most advanced species, and to assume it is absurd.
.
There are certain moons and other objects in our own solar system that defy logic and behave oddly.
Pluto for example, orbits in the opposite direction around the Sun, and has a different angle to the other Planets.
Some have mathematically perfect orbits, unheard of in nature, such as Mars' moon Phobos (with it's obelisk), and our own familiar moon with its strange buildings and emitters.
Other space objects have changed course and speed, such as "comet" Elinin which now orbits the Sun at the same distance as Earth.
.
There are millions of alien spacecraft and numerous alien buildings and artifacts both in-use and discarded over most of the planets, including this one.
Also, astoundingly, the Earth's Moon is a billion years OLDER than the Earth, suggesting it came from elsewhere into a "perfect" Earth orbit, its gravity matches that of a much smaller moon, and when it's surface was nuked, it "rang like a bell" and shook as if hollow.
The picture below is from NASA/JPL-Caltech, but if news were to come out about a free-floating Planet changing its course and speed, I doubt it would come from NASA's Jet Propulsion Laboratory.
Spirality 24 July 2013
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Ten planets the size of Jupiter have been found which do not appear to orbit any star.
Original story [Here]
By:AAP with AG Staff May-19-2011
ASTRONOMERS SAY THEY have found a previously inconceivable phenomenon: planets that do not appear to be anchored to a host star but instead wander the heavens unbound.
In a two-year scan of the cosmos, 10 planets with roughly the mass of Jupiter, the largest planet of our Solar System, have been found at such enormous distances from the nearest star that some of them could be said to float freely through the Milky Way.
"Although free-floating planets have been predicted, they finally have been detected, holding major implications for planetary formation and evolution models," says Dr Mario Perez, exoplanet program scientist at NASA's headquarters in Washington DC.
The investigation, published in the science journal Nature, breaks new ground in the science of exoplanets, or planets that exist beyond our Solar System. More than 500 such planets have been identified since 1995. But these are the first that have been found to be orbiting at such a huge range from the nearest star or seem to be "unbound" from it.
Planets not shackled by gravity
The new planets were found in a search that looked for objects ranging between 10 and 500 astronomical units (AU) from a star. The AU is a standard measurement comprising the span between Earth and the Sun, nearly 150 million kilometres.
By comparison, Jupiter is just over five AU from the Sun, while Neptune, the outermost recognised planet, is 30. The theory of planetary foundation says that planets are agglomerations of dust and gas and are enslaved by their stars, doomed to orbit around it until the star runs out of fuel.
The new paper suggests these very distant planets unshackled from their gravitational moorings at an early phase. "They may have formed in proto-planetary disks, and subsequently scattered into unbound or very distant orbits," it says.
The study was written by two teams who used gravitational microlensing to analyse tens of millions of Milky Way stars over a two year period. Under this technique, a foreground star passes in front of a distant, background star. Light from the background star is magnified, carrying a telltale "light curve" that can be filtered from the foreground star.
"The implications of this discovery are profound," says German astronomer Dr Joachim Wambsganss in a commentary also published by Nature. "We have a first glimpse of a new population of planetary-mass objects in our galaxy. Now we need to explore their properties, distribution, dynamic states and history."
Origin: dark-shadowy-line.blogspot.com
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