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Scientists dispute 'alien spacecraft' suggestions!

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  • Scientists dispute 'alien spacecraft' suggestions!

    ALIENSSSSSSSSSSSSSSSSSSSSSSSSSS Sadly not so say scientists arguing among themselves

    Harvard researchers recently suggested the object may be a probe sent by an alien civilisation, but other scientists disagree.

    A cigar-shaped interstellar object that flew past the sun probably isn't an alien spacecraft, scientists are saying, despite the suggestion by researchers from Harvard University.
    Scientists have been trying to figure out what the 1,312ft (400m) object named Oumuamua might be after it was first spotted by a telescope in Hawaii in October 2017.
    The object's flat, elongated shape and reddish colour is from outside our solar system, according to the researchers.
    It was moving at 59,030mph when it was first tracked by scientists, and its unusual trajectory and high speed sets it aside from other space objects such as asteroids and comets.
































  • #2
    It looks like there are nutcases among scientists too...

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    • #3
      Such spacecrafts I produce every morning in the toilet

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      • #4
        Originally posted by jordan_rudess View Post
        Such spacecrafts I produce every morning in the toilet
        400 meters long, then you really are full of crap

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        • #5
          There are some interesting points.
          - first object outside our solar system, even outside Oort cloud
          - shape unusual for common asteroids and comets
          - probably rotation along two axes
          - didn't slowed down as much as calculated, while swing-by in gravity field of our star
          - no gas emission while heating up of surface through sunlight, like many objects from our solar system
          - very low albedo (this object is practically dark red)

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          • #6
            Probably misreporting of a throwaway line from a scientist. The usual shit that goes on when the media reports science news.

            I'm surprised that far more such objects have not been observed so far in our solar system given that most stars most likely should have Oort Clouds as a remainder from material accretion during stellar and planetary formation. The sheer number of stars with exoplanets points to this being a highly likely and valid one.

            Over time, you would expect a lot of perturbation of these clouds by passing start to be going on and objects flying off into and out of the galactic region they originate from.

            As for the colour and shininess of the object - something with dust and a high water/ammonia ice content would place this object into the category of being an Oort Cloud object from some star at a guess. No "solar sail from an alien spacecraft" type bullshit required.

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            • #7
              Originally posted by aussieinbg View Post
              Probably misreporting of a throwaway line from a scientist. The usual shit that goes on when the media reports science news...
              That's quite likely in this case. Unfortunately, scientists are not immune to nutty ideas either. Two Russian scientists actually proposed that the Moon was a hollow spacecraft. Other Russian scientists also suggested that Mars' moons were hollow alien bases. All that vodka must affect your judgement after a while...

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              • #8
                Originally posted by RogerCarmel View Post
                That's quite likely in this case. Unfortunately, scientists are not immune to nutty ideas either. Two Russian scientists actually proposed that the Moon was a hollow spacecraft. Other Russian scientists also suggested that Mars' moons were hollow alien bases. All that vodka must affect your judgement after a while...
                99% of the sensationalist reports regarding scientists / technology people that get reported, even in supposedly reputable media, are total bullshit. Sometimes scientists even troll journalists within listening distance and see what happens.

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                • #9
                  And yes, nothing too exciting about this asteroid:

                  https://www.livescience.com/64526-in...t-special.html

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                  • #10
                    Originally posted by aussieinbg View Post
                    And yes, nothing too exciting about this asteroid:

                    https://www.livescience.com/64526-in...t-special.html
                    At least was is the first exosolar object observed in our star system.
                    The alien spacecraft hypothesis has been from beginning just a self promotion of few attention hungry scientists.

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                    • #11
                      Originally posted by FiveSeven View Post
                      At least was is the first exosolar object observed in our star system.
                      This bit is extremely interesting, historical and something exciting from a scientific viewpoint. I would be very interested to see how old it really is (which can be potentially inferred from relative isotope composition obtained by spectral analysis, the actual composition of the asteroid and more work on the orbital dynamics via modelling which would give some indication from where it originated.

                      Of course none of this exactly excites most people who are into shit like astrology, the second coming of Jesus, Magong, New Ageism and so on. Fairytales are easier to wrap your head around than reality.

                      Now, if there were other evidence aside from strange orbit, perhaps slightly unusual shape and a composition that is extremely deviant from known outputs from supernovae explosions, then you might begin to speculate in a more substantial manner about this being "alien".

                      Originally posted by FiveSeven View Post
                      The alien spacecraft hypothesis has been from beginning just a self promotion of few attention hungry scientists.
                      Ummmm no. This is all about sloppy unethical journalism. A list of 5 or 10 possibilities for this object - of which "alien space craft" might be one - suddenly becomes "scientists believe that strange object is an alien space craft".

                      I've seen it happen myself personally at technical and scientific conferences which subsequently were reported on in the media - cherry-picked statements which then get reported completely out of context.

                      Comment


                      • #12
                        Originally posted by aussieinbg View Post

                        This bit is extremely interesting, historical and something exciting from a scientific viewpoint. I would be very interested to see how old it really is (which can be potentially inferred from relative isotope composition obtained by spectral analysis, the actual composition of the asteroid and more work on the orbital dynamics via modelling which would give some indication from where it originated.

                        Of course none of this exactly excites most people who are into shit like astrology, the second coming of Jesus, Magong, New Ageism and so on. Fairytales are easier to wrap your head around than reality.

                        Now, if there were other evidence aside from strange orbit, perhaps slightly unusual shape and a composition that is extremely deviant from known outputs from supernovae explosions, then you might begin to speculate in a more substantial manner about this being "alien".
                        It's very likely that Geminga is the supernova mother of our solar system.
                        https://en.wikipedia.org/wiki/Geminga

                        Other stars in our close surrounding have different material composition, this makes possible to determine their "birth place" together with trajectory they have. It's very likely that this stone came from one of them through some gravitation disturbances in other star's outer belt.
                        Spectrometric analysis of the surface doesn't say much about isotopes, because such an object is coated with interstellar dust. For taking samples from such an object we don't have the technology and we have no clue about composition of cold objects in star systems which are surrounding us.
                        Hence is this only a guess game.

                        Originally posted by aussieinbg View Post
                        Ummmm no. This is all about sloppy unethical journalism. A list of 5 or 10 possibilities for this object - of which "alien space craft" might be one - suddenly becomes "scientists believe that strange object is an alien space craft".

                        I've seen it happen myself personally at technical and scientific conferences which subsequently were reported on in the media - cherry-picked statements which then get reported completely out of context.
                        "...sloppy unethical journalism..."
                        Hunger for clicks and money from advertising leads to such hypes and irrational shits torms.
                        Nevertheless it's in scientific media not so sick like this is in political ones.

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                        • #13
                          Originally posted by FiveSeven View Post
                          Spectrometric analysis of the surface doesn't say much about isotopes, because such an object is coated with interstellar dust. For taking samples from such an object we don't have the technology and we have no clue about composition of cold objects in star systems which are surrounding us.
                          Hence is this only a guess game.
                          You can still potentially get clues via deviations from the known spectral composition of interstellar dust. Collisions with other bodies, micro-asteriods and so on. Even deviations from standard profiles of interstellar dust from the path the the asteriod might have taken can tell you something potentially.

                          Originally posted by FiveSeven View Post
                          "...sloppy unethical journalism..."Hunger for clicks and money from advertising leads to such hypes and irrational shits torms.
                          Nothing new here. The tabloid press has been doing this sort of thing for hundreds of years. Plus ca change...

                          Originally posted by FiveSeven View Post
                          Nevertheless it's in scientific media not so sick like this is in political ones.
                          But when applied by the media to scientists and other such people, it is an easier game, Technical people are on average far less media-savvy than politicians.

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                          • #14
                            As a spaceman stuck here in earth,let me assure you it was not an alien probe. The nearest star,not counting mr. sun, is over 4 light years away. Would be quite a journey not to stick around to gather data from here.

                            And, yes, it was a throwaway line that was oversensationalized by the media. Next,they will develop stories about perpetual motion devices and entropy reversal.

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                            • #15
                              Originally posted by SpacemanBiff View Post
                              And, yes, it was a throwaway line that was oversensationalized by the media. Next,they will develop stories about perpetual motion devices
                              According to the media, perpetual motion machines have been around for many hundreds of years..

                              Originally posted by SpacemanBiff View Post
                              and entropy reversal.
                              Yes, there are a few claims like this... There are some claims here that "entropy can be reversed" and even the "arrow of time" like this recent one:

                              https://www.technologyreview.com/s/6...arrow-of-time/

                              but it's obvious when you think about it for more than 5 seconds that what they have done with quantum entanglement in this experiment is created a quantum scale version of a heat pump.

                              While you might have created a subsystem where you have observed a resultant drop in entropy - namely the two quantum-entangled atoms in the chloroform molecule - that to achieve it you must have increased entropy elsewhere. Namely, the process of quantum entanglement itself must generate entropy. What was certainly forgotten by the "scientific" journalist and even perhaps the experimental scientists (I hope not!!!) is the increase of entropy of the magnetic field generated when the magnetic field works to "flip" the molecules in the field itself. While the magnetic field works to create a situation where there can be a net decrease in the quantum-entangled system of the atoms of the molecule, work is still performed by the magnetic field to achieve that - thereby increasing the entropy of the magnetic field.

                              This is analogous to a refrigerator. The local system of a refrigerator, namely the inside of the fridge and the freezer, certainly experience a drop in entropy - you observe them getting colder after all and the corresponding drop in entropy. However, total entropy of the system increases because the refrigerant is heated by the heat extracted from the refrigerator during the expansion/contraction phase of the refrigerant and even the work done by the refrigerator pump - not to mention losses induced by the flow of the refrigerant in the system through piping besides the heat transfer at the grill..




                              So, claims of "reversal of time arrows" and so on here in that article are most likely total bullshit.

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