RemoveSnyder Posted November 22, 2019 Share Posted November 22, 2019 No random thought thread available. Dozens of random exoplanet threads buried. Not space travel related. #Cosmicchinmusic 3 Link to comment Share on other sites More sharing options...
Mr. Sinister Posted November 22, 2019 Share Posted November 22, 2019 (edited) Feel like we've been due for something for awhile now. Edited November 22, 2019 by Mr. Sinister Link to comment Share on other sites More sharing options...
Mr. Sinister Posted November 22, 2019 Share Posted November 22, 2019 In other space related news... https://www.nasa.gov/feature/goddard/2019/hubble-studies-gamma-ray-burst-with-highest-energy-ever-seen Quote Hubble Studies Gamma-Ray Burst With Highest Energy Ever Seen NASA’s Hubble Space Telescope has given astronomers a peek at the location of the most energetic outburst ever seen in the universe — a blast of gamma-rays a trillion times more powerful than visible light. That’s because in a few seconds the gamma-ray burst (GRB) emitted more energy than the Sun will provide over its entire 10-billion year life. In January 2019, an extremely bright and long-duration GRB was detected by a suite of telescopes, including NASA’s Swift and Fermi telescopes, as well as by the Major Atmospheric Gamma Imaging Cherenkov (MAGIC) telescopes on the Canary islands. Follow-up observations were made with Hubble to study the environment around the GRB and find out how this extreme emission is produced. “Hubble’s observations suggest that this particular burst was sitting in a very dense environment, right in the middle of a bright galaxy 5 billion light years away. This is really unusual, and suggests that this concentrated location might be why it produced this exceptionally powerful light,” explained one of the lead authors, Andrew Levan of the Institute for Mathematics, Astrophysics and Particle Physics Department of Astrophysics at Radboud University in the Netherlands. *More at the link These things really creep me the hell out 3 Link to comment Share on other sites More sharing options...
Renegade7 Posted November 22, 2019 Share Posted November 22, 2019 Space thread has been overdue, thank you Need to read that article about water vapor on Europa, I'd skip Mars and go straight to drilling a hole there until I found the ocean and drop those same submersibles they use for deep sea exploration. 2 Link to comment Share on other sites More sharing options...
Mr. Sinister Posted November 22, 2019 Share Posted November 22, 2019 (edited) 48 minutes ago, Renegade7 said: Space thread has been overdue, thank you Need to read that article about water vapor on Europa, I'd skip Mars and go straight to drilling a hole there until I found the ocean and drop those same submersibles they use for deep sea exploration. Probably would be a challenge withstanding all the radiation for an extended amount of time, which might explain why we apparently arent in a rush to do it. That, and it would suck to do all that work, succeed, get down there, and watch as your baby gets destroyed by a giant irradiated fish man Edited November 22, 2019 by Mr. Sinister 1 Link to comment Share on other sites More sharing options...
Renegade7 Posted November 22, 2019 Share Posted November 22, 2019 4 minutes ago, Mr. Sinister said: Probably would be a challenge withstanding all the radiation for an extended amount of time, which might explain why we apparently arent in a rush to do it. That's real talk on the amount of radiation coming from Jupiter. Have to wonder how much of this can be automated in regards to sending something that can drill through the surface and drop the submersible. This is from 2016 and raising concerns of why it's not that simple and still not on scale I want of breaking all the way through https://www.space.com/35136-jupiter-moon-europa-life-hunt-drill.html 4 minutes ago, Mr. Sinister said: That, and it would suck to do all that work, succeed, get down there, and watch as your baby gets destroyed by a giant irradiated fish man If that happens, I'd say mission accomplished : ) Link to comment Share on other sites More sharing options...
PeterMP Posted November 22, 2019 Share Posted November 22, 2019 2 minutes ago, Mr. Sinister said: Probably would be a challenge withstanding all the radiation for an extended amount of time, which might explain why we apparently arent in a rush to do it. That, and it would suck to do all that work, succeed, get down there, and watch as your baby gets destroyed by a giant irradiated fish man If we're talking about people, it seems like that the radiation to even get to Mars might be an issue. https://blogs.scientificamerican.com/guest-blog/lets-colonize-titan/ (Though, I think they are wrong about skipping the moon. There is a large extra costs on Earth to living underground because of gravity and weight that they seem to be not taking into account as compared to the moon. On the moon with less gravity, creating underground structures would be easier in terms of you'd be supporting less weight so need less structural support, it is easier to move the dirt out to make the space to live under because the same volume of mass of dirt weighs less, and with the lunar craters you don't have to dig "down" to get "down". On the moon, you can just go down a crater the right depth and start digging "in" and skip the digging "down" part. When comparing living underground on Earth to the moon, I don't think they are properly factoring in that building large underground structures on the moon isn't really comparable to doing so on Earth.) 1 Link to comment Share on other sites More sharing options...
Mr. Sinister Posted November 22, 2019 Share Posted November 22, 2019 (edited) I'm actually talking about equipment. I'm assuming with current suits you would be dead in a matter of a couple minutes at least on a place like Europa so that's probably out of the question. Im not sure how badly it could affect stuff like data analyzing equipment and things like that in order to even drill properly for that duration. *Edit, so the radiation is lethal, but not that lethal. Edited November 22, 2019 by Mr. Sinister 1 Link to comment Share on other sites More sharing options...
88Comrade2000 Posted November 22, 2019 Share Posted November 22, 2019 Space, the final frontier. These are the voyages of the .... Oops, wrong thread. Maybe one day this will be real. 2 Link to comment Share on other sites More sharing options...
mistertim Posted November 23, 2019 Share Posted November 23, 2019 12 hours ago, Renegade7 said: Space thread has been overdue, thank you Need to read that article about water vapor on Europa, I'd skip Mars and go straight to drilling a hole there until I found the ocean and drop those same submersibles they use for deep sea exploration. What's up with this place? The Moon, Mars, Europa? ARE THERE NO BELTERS HERE?!? 1 2 1 Link to comment Share on other sites More sharing options...
RemoveSnyder Posted November 23, 2019 Author Share Posted November 23, 2019 2 Link to comment Share on other sites More sharing options...
RemoveSnyder Posted November 23, 2019 Author Share Posted November 23, 2019 Link to comment Share on other sites More sharing options...
RemoveSnyder Posted November 23, 2019 Author Share Posted November 23, 2019 Planet Nine may be a black hole the size of a baseball A slew of oddly orbiting objects indicates a massive planet is hiding in the outer solar system. But one group of astronomers says it might be a tiny black hole instead. By Jake Parks | Published: Tuesday, October 1, 2019 http://www.astronomy.com/news/2019/10/planet-nine-may-be-a-black-hole-the-size-of-a-baseball The odd orbits of distant space rocks suggest there’s a giant, elusive world dubbed Planet Nine waiting out there to be discovered. But now, in a new research paper, a team of scientists suggest something far stranger may be influencing the orbits of these distant worlds. These astronomers say our solar system may be home to one of the earliest black holes in the universe: a primordial black hole. The Planet Nine hypothesis Astronomers have uncovered about a dozen objects in the distant solar system that defy expectations. In addition to a few other odd attributes, this special subset of icy objects orbiting past Neptune, dubbed Trans-Neptunian Objects, or TNOs, all make their closest approaches to the Sun at about the same spot in space. Even at their closest, these so-called extreme TNOs stay so far from our last known planet that Neptune can't be responsible for shaping their odd orbits. So, to account for the bizarre orbits, a team of astronomers recently invoked a wild yet increasingly convincing explanation for how they came to be. Namely, a goliath planet some five to 15 times the mass of the Earth is hiding far beyond Pluto, hundreds of times farther from the Sun than Earth. It's this giant world, Planet Nine proponents argue, that is shepherding the eTNOs into their unusual orbits. The black hole hypothesis But according to new research posted September 24 on the preprint site arXiv, Planet Nine isn't the only possible explanation for the eTNOs. The culprit, the new study claims, could be a primordial black hole instead. Primordial black holes are predicted to have popped into existence within the first few fractions of a second after the Big Bang. However, their existence has never been confirmed. If true, the proposed black hole likewise would be located hundreds of times farther from the Sun than Earth. But because black holes are incredibly adept at crushing down matter, a black hole equivalent to roughly five Earth-masses would be only about the size of a baseball. 2 Link to comment Share on other sites More sharing options...
RemoveSnyder Posted November 23, 2019 Author Share Posted November 23, 2019 Juan Soto hit another home run. ☄️⚾ 1 Link to comment Share on other sites More sharing options...
RemoveSnyder Posted November 23, 2019 Author Share Posted November 23, 2019 Link to comment Share on other sites More sharing options...
Mr. Sinister Posted November 23, 2019 Share Posted November 23, 2019 RE: "Planet Nine" Anyone here got any ideas on what it could be? Gas giant? Terrestrial? Could it support life so far from the sun? Link to comment Share on other sites More sharing options...
mistertim Posted November 23, 2019 Share Posted November 23, 2019 10 minutes ago, Mr. Sinister said: RE: "Planet Nine" Anyone here got any ideas on what it could be? Gas giant? Terrestrial? Could it support life so far from the sun? Pretty much impossible to know. Could be either gas or terrestrial. No way it could support the kind of life we're used to. It's a borderline interstellar object so it basically lives in close to absolute zero. The black hole theory is interesting but not sure how the hell one could end up with a baseball sized black hole (the Schwarzschild radius for the size of a baseball would actually be about 8.5 masses of Earth...not sure where they got 5). To my understanding any "normally created" (gravitational attraction bringing matter together to create a planet, etc) object with a mass of 8.5 Earths wouldn't be anywhere near dense enough to collapse into a black hole. I don't see how it could be a "primordial" black hole either, because a black hole of that size would evaporate due to Hawking radiation within 9 million years at the most. Unless it was once a MUCH bigger black hole originally. Link to comment Share on other sites More sharing options...
Springfield Posted November 24, 2019 Share Posted November 24, 2019 I’ll just leave this here... Link to comment Share on other sites More sharing options...
88Comrade2000 Posted November 24, 2019 Share Posted November 24, 2019 (edited) On 11/23/2019 at 7:46 PM, Springfield said: I’ll just leave this here... They videotape that alternate speech? Didn’t know that. Oh, it's a deepfake. Edited November 27, 2019 by Rdskns2000 Link to comment Share on other sites More sharing options...
RemoveSnyder Posted November 24, 2019 Author Share Posted November 24, 2019 https://arxiv.org/abs/1909.11090 What if Planet 9 is a Primordial Black Hole? Jakub Scholtz, James Unwin (Submitted on 24 Sep 2019) We highlight that the anomalous orbits of Trans-Neptunian Objects (TNOs) and an excess in microlensing events in the 5-year OGLE dataset can be simultaneously explained by a new population of astrophysical bodies with mass several times that of Earth (M⊕). We take these objects to be primordial black holes (PBHs) and point out the orbits of TNOs would be altered if one of these PBHs was captured by the Solar System, inline with the Planet 9 hypothesis. Capture of a free floating planet is a leading explanation for the origin of Planet 9 and we show that the probability of capturing a PBH instead is comparable. The observational constraints on a PBH in the outer Solar System significantly differ from the case of a new ninth planet. This scenario could be confirmed through annihilation signals from the dark matter microhalo around the PBH. Comments: 7 pages, 1 exact scale illustration of a 5 Earth mass black hole Subjects: High Energy Physics - Phenomenology (hep-ph); Cosmology and Nongalactic Astrophysics (astro-ph.CO); Earth and Planetary Astrophysics (astro-ph.EP) Report number: IPPP/19/73 Cite as: arXiv:1909.11090 [hep-ph] (or arXiv:1909.11090v1 [hep-ph] for this version) Bibliographic data [Enable Bibex] Submission history From: James Unwin [view email] [v1] Tue, 24 Sep 2019 18:00:01 UTC (19 KB) 2 Link to comment Share on other sites More sharing options...
RemoveSnyder Posted November 24, 2019 Author Share Posted November 24, 2019 1 1 Link to comment Share on other sites More sharing options...
Springfield Posted November 24, 2019 Share Posted November 24, 2019 1 hour ago, Rdskns2000 said: They videotape that alternate speech? Didn’t know that. They didn’t. It’s a deep fake that was created by MIT (?) 1 Link to comment Share on other sites More sharing options...
RemoveSnyder Posted November 26, 2019 Author Share Posted November 26, 2019 1 Link to comment Share on other sites More sharing options...
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Renegade7 Posted November 30, 2019 Share Posted November 30, 2019 Scientists find ‘monster’ black hole so big they didn’t think it was possible https://www.washingtonpost.com/science/2019/11/29/scientists-find-monster-black-hole-so-big-they-didnt-think-it-was-possible/ Before now, scientists did not think it was possible for a stellar black hole to have a mass larger than 20 times that of the sun, an approximation based on their understanding of the way stars evolve and die in the Milky Way. But that assumption was metaphorically crushed in the gravity of a “monster” black hole that a group of Chinese-led international scientists discovered inside our own galaxy. The hole has a mass 70 times that of the sun, researchers said in their study published in the journal Nature. 1 Link to comment Share on other sites More sharing options...
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