It's really interesting how NASA rather chooses to use explosive means to cut wires and ropes, common sense tells me use of explosives are very prone to failure. I'm curious why didn't NASA use for a much better redundancy failure proof system rather than use of explosives for cutting wires and ropes loose, such as some form of a spring which is pre loaded and latched with a digital solenoid. Once the spring is set loose by the solenoid it has a sharp tip which by force can cut loose the wires or ropes. I think explosives is used for compactness, you can get much more energy force with the use of explosives than a loaded spring when size and compactness comes into play.
what does he mean by "if the ropese were not severed, the descent stage would just continue downward crashing into the rover". Is there a "ropes successful cut" sensor?!?
I completely agree, redundancy for use of explosives for cutting lose the wires and ropes is not to hard rather easy, if the ropes did not cut loose due to a faulty expulsive cutter, a spring loaded cutter could have taken place. This is really weird, I'm assuming NASA thought if ropes didn't cut lose with explosive, it was most likely a faulty sensor and therefore the mission is over and doesn't make sense for extra redundancy for cutting wires.
what happens to the sky cairn? it floats about in space? be comes space junk? its collected?it burns up? So many unanswered questions,
It crashes a few hundred meters away. Goes SPLAT.
Space science is beautiful ❤️❤️❤️ What happened to Sky Crain ? Where is he gone 😭
I felt nostalgic seeing earth’s photo from Mars 🥲 what a amazing work 🥲!!!
This is a good example of how Hollywood oversimplifies engineering. In the movies, 8 year old Luke Skywalker builds a completely sentient android in a desert tent, and Tony Stark builds a flying armor suit while being held captive in a cave. Now, in the movies’ defense, they have to do this because showing the actual engineering process would take too long and would not be very entertaining, but with this video, it’s clear that there are many moving parts, each of which requires lots of attention. The whole thing was not designed and built by a single person - you’d have a team working only on that spool mechanism, maybe one or a few people doing that confluence bell assembly, several airframe designers working on the whole skeletal structure that supports the engines, reeling mechanism, etc. Plus, you need a big rocket just to get the rover there in the first place. In all, there are hundreds or even thousands of people (not just engineers, either - there are purchasing agents to work with suppliers, contract specialists to make sure all of the suppliers produce subsystems of acceptable quality, managers to keep all of the design tasks coordinated, etc. etc.) that have been involved in this effort for years to accomplish this. And it’s pretty impressive to think of the end result: a remote controlled mobile science lab that has landed on another planet and is controllable from Earth, currently about 130,000,000 miles away.
It's amazing but it's complicated - lots of moving parts that can go wrong. What if the heat shield was not able to be ejected? What if any of the Skycrane cables had not been able to be severed? What if the rope braking mechanism malfunction? Kudos to JPL. Stunning stuff.
The crane is perhaps the most perfect example of thinking outside the box. It’s brilliant. The phrase American ingenuity comes to mind. Makes me think of the proverbial Summer Science Robotics Camp invention. Honey, I landed the Rover! I’d absolutely want the minds that came up with that working for me.
This is certainly amazing
Poor lil feller flies away and CRASHES! undignified ending for a job well done.
So the sky crane just crashes somewhere or does it makes a landing?
Sadly, it will crash somewhere away from the rover
Ropes and pulleys and science
The descent stage thing flys away at the end and does what, maybe crashes somewhere else I guess, incredible engineering, great video
Yes so that way it won’t land on the rover, it’s trash now
It’s an incredible landing brilliant engineering and filming looking forward to more discoveries
Wait, where did the ropes and umbilical go in the last picture. I though it was severed on the descent rocket platform. Shouldn't it be annoyingly draped across the rover? Did I miss something?
the cables are severed at the rover and then the descent rocket platform flies away with them hanging from its undercarriage
We can not go to the moon, but Mars is no Problem !!!
No problem? Did you watch the video?
I don't understand why NASA is releasing too much technical information about Perseverance that the Chinese will eventually copy these technologies.
The Chinese will get what they want by putting American citizens on their payrolls. Its happenin until now.
its called science, and its not all about to keep closed. That thing is a human thing not a US Nasa thing.
And that will be good for the Science and NASA. More we get data from Mars (Whether USA/India/China/EU), better it is to understand Mars and its ecology
Neither do I..the chinese are going to get these info soon
.....but why to dispose the ( sky crane ) and not find the way to recover the wreckage ??? 😑😑 .
Doesn't seem particularly "environmentally friendly" as it is in bits all across a part of mars
they should utilize the sky crane afterwards...have it land near the next mars mission....have a video camera installed and set to come on to capture footage of the next landing so we can see the real deal and not animation.
To me, Sky Crane once again is the real hero. If I might say so. Beautifully narrated, thank you.
I was looking for a video to explain the sky crane in depth and this was amazing! Great job. Is there any footage anywhere of the sky crane being tested on earth? It’s impossible to find if so! I’ve seen the drop test of the rover but I’m looking for the sky crane flying on earth!
Beautifully done. Clear, confident voice -- and no vocal fry.
But what happens to the crane!?
Sky crane maneuver RIM: Rest in Mars Real hero
it flies away and crashes into the surface of mars
It crash lands about 1-2km away. There is no additional need for it once it delivered its payload.
She speak so clear
What an incredible feat of engineering!
Total abgefahren, as we say in German.
Mind boggling all this is done by computer without human operator, on pure sensors and programming.
Absolutely incredible 😲
This landing system is too complicated. Lots of things that may go wrong. I only hope that everything goes okay.
Sky Crane worked beautifully ten years ago, and now it did once again.Amazing. Truly, an engeneering work of art.
It did! (voice from the future)
It already worked well with curiosity.
Genius idea for landing !!! Looks fantastic ! Incredible delivery !!! 👍👍👍👍👍♥️♥️♥️♥️♥️
It still spanners my head that we can send something millions of kilometers across the galaxy, perform such a complex sequence of maneuvers and land safely. I watched Long March 5 take off the other day, i can not wait to see Perseverance launch. Big shout to all those that have worked so hard on this mission..peace to ya.
Mate I really hope you have enjoyed the landing on Mars, it still blows my mind 🥲
@Angel Medina Hey Angel, yes it is going to be awesome seeing and hearing that decent.
Perseverance is going to have a camera for parachute deployment camera during power flight and skycrane and a microphone during everything so would just listen and see it all cant wait until February to see it
Awesome level of genius. Yet still so much litter. Future archeologists will know instantly. Humans did that.
Assuming the human species lasts that long, can you imagine the field day archeologists in a thousand years would have with a typical city's landfill (garbage dump)?
Left a lot of litter on the moon too. Even garbage, and human waste. Mars is next.
the best show !!