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Cassini is destroyed as it flies in to Saturn


Posted on Friday, 15 September, 2017 | Comment icon 36 comments

Farewall, Cassini. Image Credit: NASA
One of the greatest robotic space missions of all time has finally reached its inevitable conclusion.
After an incredible journey that began almost 20 years ago, NASA's long-lived Cassini spacecraft has wrapped up its historic mission in spectacular fashion - by diving straight in to the gas giant itself and becoming the first probe in history ever to directly sample Saturn's atmosphere.

During its time around Saturn, Cassini taught us more than anyone dared imagine, bringing the iconic gas giant and its spectacular rings in to sharp focus and revealing a miniature solar system of mysterious moons ranging from the icy world of Enceladus to the cloud-covered Titan.


Cassini fell silent this morning at approximately 07:55 EDT.

"Things never will be quite the same for those of us on the Cassini team now that the spacecraft is no longer flying," said Linda Spilker, Cassini Project Scientist. "But,we take comfort knowing that every time we look up at Saturn in the night sky, part of Cassini will be there, too."


Source: Popular Mechanics | Comments (36)

Tags: Cassini, Saturn, Titan

Recent comments on this story
Comment icon #27 Posted by Merc14 on 19 September, 2017, 14:11
OK,. I guess I am just surprised that this is news to you as the decision was made back in April, it was all over the news, the reasoning behind it has been written about in countless articles and it has been talked about here many times. In other words, it is a surprise only to you. It doesn't run off a battery, it runs off an RTG and while was still providing power, the propellant was nearly gone which means there was absolutely noway to maneuver the craft. All options were discussed and the team thought that getting closeup data on Saturn and sampling the space between the planet an... [More]
Comment icon #28 Posted by qxcontinuum on 19 September, 2017, 15:05
Thanks for expanding. A few months backi was surprised reading that Cassini's mission is coming to an end and the plan was to crash it. At that time I though reasons would be equipment failure including battery (well RTG), however after reading that the battery's life was still suffice to maintain it's core operations functionalexcluding propellant, the most natural decision in my opinion was to move it to a fix orbit to maintain this important asset rather than crash it... however I found fascinating that after recent discoveries or confirmation that under Enceladus there's a liquid ocean w... [More]
Comment icon #29 Posted by Merc14 on 19 September, 2017, 15:47
Also, Cassini was 20 years old and on her third extension so while things were running they were wearing out and it costs money to monitor missions so this would be very little return for the dollar. Flying between the rings, however, provided a wealth of new data and no one knew what the craft would run into, it was an unknown. Much better investment IMHO.
Comment icon #30 Posted by Waspie_Dwarf on 20 September, 2017, 10:00
Incinerating a spacecraft in this way is the standard M,O, for NASA, As pointed out by toast, Derek Willis and myself, this was planned long ago, and indeed was how the mission of Galileo was ended at Jupiter back in 2003. The destruction of a spacecraft in this way is not just to protect any potential life that may exist on the moons, it is to prevent Earth life getting there. If a future mission to, for example, Enceladus discovers microbial life, scientists will need to be 100% certain that it was not accidentally introduced by a previous mission.
Comment icon #31 Posted by qxcontinuum on 22 September, 2017, 1:15
understandable but not truly applicable in this case since Cassini hosted the Huygens probe who landed on Titan, hence already producing the potential contamination
Comment icon #32 Posted by Waspie_Dwarf on 22 September, 2017, 7:28
Huygens was designed to be landed on Titan and hence underwent a more vigorous process of decontamination than Cassini, which was not designed to impact on the moons. Unlike Enceladus it is also unlikely that Titan could host life or that contamination from Earth could survive there. It is also not logical to think that simply because one probe may have been a source of contamination that 13 years later they would simply repeat the same mistake. Human beings (well some anyway) are capable of learning from their past errors.
Comment icon #33 Posted by Merc14 on 22 September, 2017, 11:49
You are working some angle here and simply beating around thebush, why don't you knock it off and simply post what you really think this is about?
Comment icon #34 Posted by qxcontinuum on 22 September, 2017, 14:31
I can assure you that there's no conspiracies in mind, norsaturnian, plutonian, venusoian , illuminati etc , related ... rofl
Comment icon #35 Posted by Merc14 on 22 September, 2017, 15:32
What are you rofl'ing about, you have had some truly bizarre ideas here in the past and I can assure you that everyone else was waiting for the other shoe to drop. I still have no idea why you are acting as if this mission end was some strange occurrence and am still convinced you have some bizarre theory you are waiting to post but so be it.
Comment icon #36 Posted by qxcontinuum on 23 September, 2017, 0:14
you are off topic ... again


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