Are we still allowed full verbal use of the spectrum, or should we say "singularity" here?
Asking for Nathan Poe.
What if Planet 9 is a Primordial Black Hole?
11–20 of 127 posts
Re: What if Planet 9 is a Primordial Black Hole?
#12So would this PBH orbit the Sun? > This scenario could be confirmed through annihilation signals from the dark matter microhalo around the PBH. How long does this experiment take to construct, and to execute? Days/weeks/decades? BTW has anyone thought of getting in touch with the Lectroids? They're bound to know more about Planet 9 than we do.
Planet X and the Annunaki. I really enjoy some of those 'out there' outer space/alien documentary shows because even if untrue, they expand my mind with ideas. Sort of the mind expansion of getting "high", without the substance part.
They have an episode on Planet X and Annunaki and predict a black hole is Planet X.
https://www.amazon.com/The-Annunaki/dp/B07JW478HG/ref=sr_1_1...
Re: What if Planet 9 is a Primordial Black Hole?
#13A person should be allowed to dream sometimes, how freaking cool would this be. A block hole right in our neighbourhood, even closer than Alpha Centauri. Just imagine what kind of things can be learned from studying it.
Cool, and absolutely terrifying.
its hung about out there for a few millennia, I doubt it's going to be a problem for us in a the entire lifespan of the human race...
Re: What if Planet 9 is a Primordial Black Hole?
#14One should not miss Figure 1 of the arXiv preprint, which is, alas, absent from the final PRL.
https://arxiv.org/pdf/1909.11090.pdf
It is among the rarest journal-article figures in physics. If I'd been asked to referee the paper, I'd have campaigned hard to keep it in.
Re: What if Planet 9 is a Primordial Black Hole?
#15A person should be allowed to dream sometimes, how freaking cool would this be. A block hole right in our neighbourhood, even closer than Alpha Centauri. Just imagine what kind of things can be learned from studying it.
Cool, and absolutely terrifying.
A fun way to not be terrified -
"What would happen if the Moon were replaced with an equivalently-massed black hole?"
Also need one for lava, but looking up quicksand is one of the few that might make it worse for you.
Re: What if Planet 9 is a Primordial Black Hole?
#16annihilation signals from the dark matter microhalo around the PBH. What? Since when do we know enough about dark matter to say something like that? Even if we did the diameter of a black hole with the mass of a dozen earths is smaller than a beach ball and the density of dark matter in the outer solar system is one AMU for every three cubic centimeters. I'm skeptical we have equipment sensitive enough to detect such…
That part seemed more speculative.
I imagine most likely this is being used as an alternative hypothesis if we search for the undiscovered planet and fail to find it. Simultaneously if we become more certain about the observed gravitational effects, the probability of a PBH would increase.
Re: What if Planet 9 is a Primordial Black Hole?
#17One should not miss Figure 1 of the arXiv preprint, which is, alas, absent from the final PRL. https://arxiv.org/pdf/1909.11090.pdf It is among the rarest journal-article figures in physics. If I'd been asked to referee the paper, I'd have campaigned hard to keep it in.
Fascinating. And kind of funny. I wonder, are there any YouTubers who walk through the math in papers like this? Asking because it seems really interesting and sometimes it's fun to learn bits here and there from applied math rather than always working up from the fundamentals.
Re: What if Planet 9 is a Primordial Black Hole?
#18One should not miss Figure 1 of the arXiv preprint, which is, alas, absent from the final PRL. https://arxiv.org/pdf/1909.11090.pdf It is among the rarest journal-article figures in physics. If I'd been asked to referee the paper, I'd have campaigned hard to keep it in.
[deleted]
Re: What if Planet 9 is a Primordial Black Hole?
#19annihilation signals from the dark matter microhalo around the PBH. What? Since when do we know enough about dark matter to say something like that? Even if we did the diameter of a black hole with the mass of a dozen earths is smaller than a beach ball and the density of dark matter in the outer solar system is one AMU for every three cubic centimeters. I'm skeptical we have equipment sensitive enough to detect such…
That part seemed more speculative. I imagine most likely this is being used as an alternative hypothesis if we search for the undiscovered planet and fail to find it. Simultaneously if we become more certain about the observed gravitational effects, the probability of a PBH would increase.
There's speculation and then there's fantasy. Hypothetically you could build a detector sensitive enough and a set of algorithms robust enough to observe the vibrations of a single crystal and decode from them every sound being made on the entire surface of the earth. Just because something is not physically impossible does not make it realistic or keep it from being foolish.
Re: What if Planet 9 is a Primordial Black Hole?
#20A person should be allowed to dream sometimes, how freaking cool would this be. A block hole right in our neighbourhood, even closer than Alpha Centauri. Just imagine what kind of things can be learned from studying it.
Cool, and absolutely terrifying.
No more terrifying than any gravity well.