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Science (non-SETI) :
Pluto is a Planet!
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janneseti Send message Joined: 14 Oct 09 Posts: 14106 Credit: 655,366 RAC: 0 |
BBC Nasa's administrator Charles Bolden said: "With this mission, we have visited every single planet in the Solar System." :) :) |
Bob DeWoody Send message Joined: 9 May 10 Posts: 3387 Credit: 4,182,900 RAC: 10 |
Well, now that they have found that Pluto is somewhat larger than previously estimated I feel they should rethink and amend their original decision about how to classify it. What if they find an object bigger than Mercury in the Kupier belt in the future, how will it be classified? Bob DeWoody My motto: Never do today what you can put off until tomorrow as it may not be required. This no longer applies in light of current events. |
Gary Charpentier Send message Joined: 25 Dec 00 Posts: 30608 Credit: 53,134,872 RAC: 32 |
Well, now that they have found that Pluto is somewhat larger than previously estimated I feel they should rethink and amend their original decision about how to classify it. What if they find an object bigger than Mercury in the Kupier belt in the future, how will it be classified? But it isn't more massive and mass is the criteria. |
Dr Who Fan Send message Joined: 8 Jan 01 Posts: 3194 Credit: 715,342 RAC: 4 |
Colbert to Neil deGrasse Tyson: Pluto 'has a heart, unlike you' Watch Stephen Colbert try to coax some love for Pluto out of Neil deGrasse Tyson while they eat Klondike bars and discuss drafting in Nascar. Should Pluto return to the planet club? In 2006, Pluto had its planet status revoked. Now a petition hopes to get it restored -- but would other dwarf planets ride in on its coattails? |
Lynn Send message Joined: 20 Nov 00 Posts: 14162 Credit: 79,603,650 RAC: 123 |
No impact craters?? The Icy Mountains of Pluto |
SciManStev Send message Joined: 20 Jun 99 Posts: 6651 Credit: 121,090,076 RAC: 0 |
I just read a bit of trivia. The original PlayStation CPU is what is powering the New Horizon space craft as it flew by Pluto. Steve Warning, addicted to SETI crunching! Crunching as a member of GPU Users Group. GPUUG Website |
tullio Send message Joined: 9 Apr 04 Posts: 8797 Credit: 2,930,782 RAC: 1 |
It is a MIPS R3000 which I used in three workstations while at Trieste Area Science Park in the Nineties. They were UNIX workstations. The main host was a MIPS R6000, a minicomputer with a RISC CPU based on ECL transistors, not a microprocessor, also running UNIX System 5, Happy days! Tullio |
Lynn Send message Joined: 20 Nov 00 Posts: 14162 Credit: 79,603,650 RAC: 123 |
More images of Pluto. Welcome to Iceworld: Stunning first hi-def image of Pluto reveals huge 11,000 foot mountains made of water ice and a geologically active surface The first ever high-resolution image of Pluto has been beamed back to Earth revealing 11,000ft (3,350 metre) mountains made of water ice. The remarkable image, released alongside new pictures of Pluto's moons Charon and Hydra, provides evidence that geological activity is still taking place on the icy world. Scientists were shocked to see mountains as high as those in the Rockies that likely formed 100 million years ago - mere youngsters relative to the 4.56-billion-year age of the solar system. Nasa says they may still be in the process of building. images |
Wiggo Send message Joined: 24 Jan 00 Posts: 34744 Credit: 261,360,520 RAC: 489 |
Thanks for all the links that those provided. ;-) Cheers. |
KLiK Send message Joined: 31 Mar 14 Posts: 1304 Credit: 22,994,597 RAC: 60 |
Well, now that they have found that Pluto is somewhat larger than previously estimated I feel they should rethink and amend their original decision about how to classify it. What if they find an object bigger than Mercury in the Kupier belt in the future, how will it be classified? Nope! ;) non-profit org. Play4Life in Zagreb, Croatia, EU |
Michael Watson Send message Joined: 7 Feb 08 Posts: 1383 Credit: 2,098,506 RAC: 5 |
Few, if any, impact craters on either Pluto or Charon. The surfaces of both were presumably 'reworked' about 100 million years ago, or so, allowing little cratering to accumulate since. The pairing of Pluto with a moon half its size is thought to be the result of a 'giant impact'. It appears that this event may have occurred very much later than the giant impact that is believed to have given rise to the Earth-Moon system. The obvious geological ferment on both Pluto and Charon could have had its source in the supposed giant impact, other explanations appearing inadequate. |
Bob DeWoody Send message Joined: 9 May 10 Posts: 3387 Credit: 4,182,900 RAC: 10 |
What about the tidal effect that Pluto and Charon have on each other? That should generate some internal heat. And doesn't the lack of impact craters indicate that Pluto has cleared it's orbital path? Bob DeWoody My motto: Never do today what you can put off until tomorrow as it may not be required. This no longer applies in light of current events. |
SciManStev Send message Joined: 20 Jun 99 Posts: 6651 Credit: 121,090,076 RAC: 0 |
What about the tidal effect that Pluto and Charon have on each other? That should generate some internal heat. I was thinking about the tidal forces Charon has on Pluto also. I was not certain it was strong enough to cause tectonic motion, but those are certainly mountains. I think the the Kyper Belt orbits as a whole, but I could be wrong about that. Steve Warning, addicted to SETI crunching! Crunching as a member of GPU Users Group. GPUUG Website |
Gary Charpentier Send message Joined: 25 Dec 00 Posts: 30608 Credit: 53,134,872 RAC: 32 |
What about the tidal effect that Pluto and Charon have on each other? That should generate some internal heat. What do you mean by "orbits as a whole"? Everything is in orbit, its own orbit, there isn't a physical connection to cause them to rotate with the same period. They cross each others orbits and from time to time have collisions. |
janneseti Send message Joined: 14 Oct 09 Posts: 14106 Credit: 655,366 RAC: 0 |
I was thinking about the tidal forces Charon has on Pluto also. I was not certain it was strong enough to cause tectonic motion, but those are certainly mountains. I think the the Kyper Belt orbits as a whole, but I could be wrong about that. Here on earth we know that tectonic motions create mountain ranges. But the mountains on Pluto seems to be distributed randomly. So it's very strange. But that's science:) |
KLiK Send message Joined: 31 Mar 14 Posts: 1304 Credit: 22,994,597 RAC: 60 |
who tells u that Pluto is molten inside? without it, very little tectonic is possible...especially in that COLD environment, where everithing is so HARD 6 BRITTLE... ;) non-profit org. Play4Life in Zagreb, Croatia, EU |
Bob DeWoody Send message Joined: 9 May 10 Posts: 3387 Credit: 4,182,900 RAC: 10 |
who tells u that Pluto is molten inside? without it, very little tectonic is possible...especially in that COLD environment, where everithing is so HARD 6 BRITTLE... ;) These people do http://etheric.com/pluto-found-to-be-geologically-active-where-does-its-heat-come-from/ Bob DeWoody My motto: Never do today what you can put off until tomorrow as it may not be required. This no longer applies in light of current events. |
Michael Watson Send message Joined: 7 Feb 08 Posts: 1383 Credit: 2,098,506 RAC: 5 |
A small object like Pluto would be expected to have dissipated its radiogenic internal heat ages ago. This is even truer for Charon, which is about half its size. Both show signs of relatively recent reworking of their surfaces, globally. Finding some other source of energy, which is responsible for this, may be necessary. It is doubtful that tidal flexing, due to the mutual interactions of Pluto and Charon, will be an adequate explanation. Science already had a reasonable idea of how much heat this could provide. The scientists were surprised that Pluto and Charon had 'young' surfaces. They apparently viewed tidal friction as an inadequate source of heat. |
tullio Send message Joined: 9 Apr 04 Posts: 8797 Credit: 2,930,782 RAC: 1 |
I just watched a NASA conference on Pluto. A geologist, discussing a high resolution picture of a plain baptized Sputnik plain, said tha the polygonal patterns see in the picture could be produced by heat coming from below, such as in boiling liquids. This reminded me of an article by Ilya Prigogine on dissipative structures published in a Mondadori Science Yearbook in 1971. I think Pluto will give us many surprises. Tullio |
janneseti Send message Joined: 14 Oct 09 Posts: 14106 Credit: 655,366 RAC: 0 |
I just watched a NASA conference on Pluto. A geologist, discussing a high resolution picture of a plain baptized Sputnik plain, said tha the polygonal patterns see in the picture could be produced by heat coming from below, such as in boiling liquids. This reminded me of an article by Ilya Prigogine on dissipative structures published in a Mondadori Science Yearbook in 1971. I think Pluto will give us many surprises. Hm:) Prigogine was the first to got a grip on the systems with feedback, that constitute our World and he called them "dissipative structures". He's ideas has since then mostly been called "self-organizing systems", as for example his disciple Erich Jantssch with the book "The Self-Organizing World". https://translate.google.se/translate?sl=sv&tl=en&js=y&prev=_t&hl=sv&ie=UTF-8&u=http%3A%2F%2Ftidningenkulturen.se%2Findex.php%2Fess-mainmenu-57%2Fagora-mainmenu-232%2F18818-varfoer-dissipativa-strukturer&edit-text= Dissipative structures are the structures that the dissipation of energy everywhere and always arise, as long as the sun radiates its energy to Earth.And Pluto of course. |
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