So that is basically insane, but I do have to ask how many of those kinds of maneuvers have been tried before? I mean, they say they can't land the rover with rockets, so I assume they have used alternate methods before as well?
For comparison, here is the similar video that they put out to describe the EDL system used by Spirit & Opportunity back in 2004. For some reason it was a mere 6 minutes of terror. I'm not sure what accounts for the discrepancy:
Here's a pretty good presentation on the design constraints of Curiosity. He answers the 6 vs 7 question about 27 minutes in: it's the guided-descent phase that gives the extra minute.
It's the landing sequence on this that has me spooked. Not that I doubt the engineering behind it but wow, to put something this heavy on the planet they had to come up with a fairly complex sequence as the 7 Minutes of Terror video explains. I'm sure it's been checked and rechecked but I don't think I'd want to have to go through the stress of waiting for final confirmation.
If they pull this off then my extreme kudos to the team, and I very eagerly await a new set of eyes on MARS. I couldn't get enough of what came out of every previous rover. Maybe I missed my calling. :)
They had a similarly remarkable landing for the Mars Exploration Rovers. I happened to be interning at JPL with the MER EDL team when these rovers landed in 2004, and the level of precision and excitement was absolutely amazing. MER had 6 minutes of terror, and they do get some data during these 6 minutes, it's just they can't do anything about it because the round trip communication delay at the time was about 20 minutes.
I remember one of the engineers comparing the precision needed for launching and landing a Rover on Mars to hitting a golf ball in California and landing a hole in one in Florida.
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[ 3.3 ms ] story [ 43.9 ms ] threadhttp://www.jpl.nasa.gov/video/index.cfm?id=1090
That is one amazingly ambitious project.
http://en.wikipedia.org/wiki/Mars_Exploration_Rover#Airbags
http://www.youtube.com/watch?v=Ij33yhdGn_g
Maybe the retrorockets/sky crane in Phoenix/Curiosity (respectively) add a few seconds.
http://www.youtube.com/watch?v=-q38AncYm2U
Then we power it up and it still works.
If they pull this off then my extreme kudos to the team, and I very eagerly await a new set of eyes on MARS. I couldn't get enough of what came out of every previous rover. Maybe I missed my calling. :)
Very risky plan in a lot of senses.
Not to say it's not the right one, but man are they putting a lot on the line.
I remember one of the engineers comparing the precision needed for launching and landing a Rover on Mars to hitting a golf ball in California and landing a hole in one in Florida.
Here's the MER EDL. http://www.youtube.com/watch?v=Ij33yhdGn_g
https://plus.google.com/u/0/110701307803962595019/posts/cZZ9...