UM-Bot Posted September 11, 2017 #1 Share Posted September 11, 2017 NASA's long-lived Cassini spacecraft will begin its final descent in to Saturn's atmosphere this week. http://www.unexplained-mysteries.com/news/311496/cassini-set-for-total-destruction-on-friday 3 Link to comment Share on other sites More sharing options...
I'mConvinced Posted September 11, 2017 #2 Share Posted September 11, 2017 Live long and prosper Cassini. Well, actually I guess not... 2 Link to comment Share on other sites More sharing options...
paperdyer Posted September 11, 2017 #3 Share Posted September 11, 2017 It's like having to put a faithful pet to sleep. 2 Link to comment Share on other sites More sharing options...
timewarrior Posted September 11, 2017 #4 Share Posted September 11, 2017 Goodbye my dear sweet probe. . . 1 Link to comment Share on other sites More sharing options...
Boozemonkey Posted September 11, 2017 #5 Share Posted September 11, 2017 Great success story. I guess that this is its 'happily ever after' Link to comment Share on other sites More sharing options...
taniwha Posted September 13, 2017 #6 Share Posted September 13, 2017 Nothing will go wrong..... Link to comment Share on other sites More sharing options...
Calibeliever Posted September 13, 2017 #7 Share Posted September 13, 2017 One of the greatest success stories of the modern era. I'm still in awe of all the things this team has accomplished in the last 15 years or so. I remember seeing those first images come back from the surface of Titan in 2005 and just sitting there speechless, trying to wrap my head around the enormity of that feat. For many on this team this is/was the highlight of their career and I understand several team members are retiring after this. I wish everyone future success and happiness. On to the next! 3 Link to comment Share on other sites More sharing options...
Astra. Posted September 13, 2017 #8 Share Posted September 13, 2017 Great job Cassini, and farewell. Link to comment Share on other sites More sharing options...
toast Posted September 15, 2017 #9 Share Posted September 15, 2017 Watch the countdown here Link to comment Share on other sites More sharing options...
Saru Posted September 15, 2017 #10 Share Posted September 15, 2017 A historic space mission through and through, it's actually quite sad seeing it come to an end. Quote Front page news update: http://www.unexplained-mysteries.com/news/311625/cassini-is-destroyed-as-it-flies-in-to-saturn 1 Link to comment Share on other sites More sharing options...
Merc14 Posted September 15, 2017 #11 Share Posted September 15, 2017 (edited) Incredible mission that was hugely successful and Grand Finale was the perfect title for the the 22 dives between Saturn and its rings. Edited September 15, 2017 by Merc14 1 Link to comment Share on other sites More sharing options...
Chortle Posted September 15, 2017 #12 Share Posted September 15, 2017 Did anyone catch the live feed on the NASA website? Was it any good or just commentary whilst the signal stopped? I can imagine it would have been pretty tense. Must be heart rendering for some of these folks spending years keeping the probe going for it to be finally all over. Either that or a huge relief! Link to comment Share on other sites More sharing options...
Merc14 Posted September 15, 2017 #13 Share Posted September 15, 2017 30 minutes ago, Chortle said: Did anyone catch the live feed on the NASA website? Was it any good or just commentary whilst the signal stopped? I can imagine it would have been pretty tense. Must be heart rendering for some of these folks spending years keeping the probe going for it to be finally all over. Either that or a huge relief! It was more morose than tense as the maneuver was relatively simple. I am sure it was hard after running teh program for 20 years to say goodbye. 1 Link to comment Share on other sites More sharing options...
qxcontinuum Posted September 17, 2017 #14 Share Posted September 17, 2017 Perhaps many don't know each reasons why the probe was destroyed on Saturn rather than being left out to become a dead object orbiting saturn: From business insigthter NASA killed its only Saturn probe because it discovered oceans that may harbor alien life below the surfaces of Enceladus and Titan, two of Saturn's largest moons. Cassini has nearly run out of propellant, and the space agency wanted to avoid crashing into and contaminating the moons - thus, the nuclear-powered probe was put down. Link to comment Share on other sites More sharing options...
toast Posted September 17, 2017 #15 Share Posted September 17, 2017 3 hours ago, qxcontinuum said: Perhaps many don't know each reasons why the probe was destroyed on Saturn rather than being left out to become a dead object orbiting saturn: From business insigthter NASA killed its only Saturn probe because it discovered oceans that may harbor alien life below the surfaces of Enceladus and Titan, two of Saturn's largest moons. Cassini has nearly run out of propellant, and the space agency wanted to avoid crashing into and contaminating the moons - thus, the nuclear-powered probe was put down. Just to avoid any kind of an upcoming CT: Cassini to be destroyed in/by Saturn`s atmosphere was a scheduled mission step from the beginning on of the Cassini-Huygens mission, so Business Insigthter is wrong by giving the impression that the destruction of the probe was a decision taken because of the Cassini-Huygens mission findings. Furthermore, it would not make sense to leave a deaktivated 2.2ton probe in the orbit of Saturn as it would endanger/influence future missions to it. 1 Link to comment Share on other sites More sharing options...
taniwha Posted September 17, 2017 #16 Share Posted September 17, 2017 5 hours ago, qxcontinuum said: Perhaps many don't know each reasons why the probe was destroyed on Saturn rather than being left out to become a dead object orbiting saturn: From business insigthter NASA killed its only Saturn probe because it discovered oceans that may harbor alien life below the surfaces of Enceladus and Titan, two of Saturn's largest moons. Cassini has nearly run out of propellant, and the space agency wanted to avoid crashing into and contaminating the moons - thus, the nuclear-powered probe was put down. Too bad if the only other life in the solar system was gently spawning in Saturn's atmosphere exactly when the probe blew apart. It's possible but I guess we won't ever know. Link to comment Share on other sites More sharing options...
qxcontinuum Posted September 18, 2017 #17 Share Posted September 18, 2017 On 9/17/2017 at 5:09 AM, toast said: Just to avoid any kind of an upcoming CT: Cassini to be destroyed in/by Saturn`s atmosphere was a scheduled mission step from the beginning on of the Cassini-Huygens mission, so Business Insigthter is wrong by giving the impression that the destruction of the probe was a decision taken because of the Cassini-Huygens mission findings. Furthermore, it would not make sense to leave a deaktivated 2.2ton probe in the orbit of Saturn as it would endanger/influence future missions to it. however it looks like all articles online published are mentioning the version I broadcasted initially http://science.howstuffworks.com/why-cassini-crashed-protecting-icy-moon-enceladus.htm Link to comment Share on other sites More sharing options...
Calibeliever Posted September 18, 2017 #18 Share Posted September 18, 2017 On 9/16/2017 at 11:39 PM, qxcontinuum said: Perhaps many don't know each reasons why the probe was destroyed on Saturn rather than being left out to become a dead object orbiting saturn: From business insigthter NASA killed its only Saturn probe because it discovered oceans that may harbor alien life below the surfaces of Enceladus and Titan, two of Saturn's largest moons. Cassini has nearly run out of propellant, and the space agency wanted to avoid crashing into and contaminating the moons - thus, the nuclear-powered probe was put down. The Cassini mission evolved over the years and at certain phases decisions were made as to the next steps. In the last few year, as Cassini was running low on fuel, several options were explored/discussed. Among them were a slingshot maneuver outward (ala Voyager), or a stable extended orbit around Saturn. The possibility of contaminating one of the moons was a big factor in ruling out the latter. In the end it was decided that there was a great deal to be gained (data wise) by skimming the upper atmosphere of Saturn and sending back readings even though it meant a terminus event for the mission, vs sending it into the outer solar system. There probably wasn't enough fuel to make the adjustment necessary to get very close to any of the outer planets. Any suggestion that we "found life" (or even the likelihood that it's there) however, is made-up hooey. Link to comment Share on other sites More sharing options...
toast Posted September 18, 2017 #19 Share Posted September 18, 2017 21 minutes ago, qxcontinuum said: however it looks like all articles online published are mentioning the version I broadcasted initially http://science.howstuffworks.com/why-cassini-crashed-protecting-icy-moon-enceladus.htm Does not change the fact that the destruction of Cassini in Saturn`s atmosphere was planned at the time already when Cassini was still not build. Link to comment Share on other sites More sharing options...
Merc14 Posted September 18, 2017 #20 Share Posted September 18, 2017 (edited) On 9/17/2017 at 0:39 AM, qxcontinuum said: Perhaps many don't know each reasons why the probe was destroyed on Saturn rather than being left out to become a dead object orbiting saturn: From business insigthter NASA killed its only Saturn probe because it discovered oceans that may harbor alien life below the surfaces of Enceladus and Titan, two of Saturn's largest moons. Cassini has nearly run out of propellant, and the space agency wanted to avoid crashing into and contaminating the moons - thus, the nuclear-powered probe was put down. You understand that they haven't found any life in the Saturnian system but they have found two moons that could possibly support life right? Also, this life would probably be something that survives off volcanic activity like we have life around deep ocean "black smokers" so we are't talking about advanced life forms here. All speculation of course because we have no way of actually exploring either of these bodies at this time. 16 minutes ago, toast said: Does not change the fact that the destruction of Cassini in Saturn`s atmosphere was planned at the time already when Cassini was still not build. I thought it was one of a few possibilities and they left the decision to be made later? I can't find anything about it on the net so, honestly, I don't know Edited September 18, 2017 by Merc14 Link to comment Share on other sites More sharing options...
toast Posted September 18, 2017 #21 Share Posted September 18, 2017 15 minutes ago, Merc14 said: I thought it was one of a few possibilities and they left the decision to be made later? I remember a TV interview with an ESA guy in the 90s and he spoke about the destruction of Cassini at the mission`s end- Link to comment Share on other sites More sharing options...
Merc14 Posted September 18, 2017 #22 Share Posted September 18, 2017 Just now, toast said: I remember a TV interview with an ESA guy in the 90s and he spoke about the destruction of Cassini at the mission`s end- Ok thanks I didn't know and was always curious about it. 1 Link to comment Share on other sites More sharing options...
Derek Willis Posted September 18, 2017 #23 Share Posted September 18, 2017 (edited) According to Wiki - a reliable source(!) - the plan was always to make sure that no biological contamination of Saturn's moons would occur. However, this did not necessarily mean destroying Cassini. For example, one option was to place the probe in a high orbit around Titan. The various options were assessed in 2008 at the time of the mission extension, and by 2014 the decision had been made to plunge Cassini into Saturn's atmosphere in a "Grand Finale". https://en.wikipedia.org/wiki/Cassini_retirement The last few days have been a fascinating revisit of the amazing images and data sent back by one of NASA and ESA's most successful missions! Edit: Despite what Wiki says, like Toast I have a vague memory of someone at around the time of Cassini's launch mentioning that ultimately the probe would be destroyed. Edited September 18, 2017 by Derek Willis Link to comment Share on other sites More sharing options...
Waspie_Dwarf Posted September 18, 2017 #24 Share Posted September 18, 2017 27 minutes ago, Derek Willis said: Edit: Despite what Wiki says, like Toast I have a vague memory of someone at around the time of Cassini's launch mentioning that ultimately the probe would be destroyed. I have more than a vague memory. Many years ago I was arguing with conspiracy theorists, on this site, that claimed that NASA's plan was to use the plutonium on board Cassini to ignite Saturn's core and turn it into a second sun. The Illuminati and or NWO would escape to Titan and the rest of us would die. Mind you they made exactly the same claims about Galileo and Jupiter. 1 Link to comment Share on other sites More sharing options...
qxcontinuum Posted September 19, 2017 #25 Share Posted September 19, 2017 17 hours ago, Merc14 said: You understand that they haven't found any life in the Saturnian system but they have found two moons that could possibly support life right? Also, this life would probably be something that survives off volcanic activity like we have life around deep ocean "black smokers" so we are't talking about advanced life forms here. All speculation of course because we have no way of actually exploring either of these bodies at this time. the subject of conversation here isn't about the complexity of life that may be harbored by Enceladus or Titan but the decision Nasa has made to crash Cassini on Saturn. Looks like everywhere online it is announced as such . I also find interesting the decision taken to crash the probe rather than place it on either one's orbit and continue observations, since the battery was still having life. Link to comment Share on other sites More sharing options...
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