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Perseverance Rover lands on Mars [video]
111–120 of 517 posts
Re: Perseverance Rover lands on Mars [video]
#112Earlier quoted context omitted.
How could you know? SpaceX never landed or sent a craft on a foreign body.
SpaceX hasn't been around as long as NASA. Also, remind me, did NASA develop reusable rockets?
NASA doesn't really build rockets in-house, all of their reusable rockets were built by contractors under NASA's supervision. Sometimes NASA collaborated with other organizations (e.g. DARPA/military funding paid for a lot of the DC-X reusable rocket)
Re: Perseverance Rover lands on Mars [video]
#113Space exploration is unlike anything else. Perfect combination of exploring unknowns + badass robots + science.
Re: Perseverance Rover lands on Mars [video]
#114Earlier quoted context omitted.
SpaceX hasn't been around as long as NASA. Also, remind me, did NASA develop reusable rockets?
> Also, remind me, did NASA develop reusable rockets? I can't tell if this is sarcasm or not but... yes, of course NASA developed reusable rockets. The space shuttle missions reused the shuttles and the boosters.
The Space Shuttle was reusable (with massive refurbishing after each flight) but given that'd it cost significantly more than a non-reusable rocket per pound I think the point stands. SpaceX managed to make a financially viable reusable rocket.
Re: Perseverance Rover lands on Mars [video]
#115Watching the stream, it's striking the difference in employee age between NASA and SpaceX. I won't speculate on the reasons, but I wish the best to the Perseverance team!
I thought they were young people in the NASA video. Does that mean people at SpaceX are older ?
Re: Perseverance Rover lands on Mars [video]
#116This is so awesome. Go Nasa! I am amazed at what humans have been able to achieve in short time since the Industrial revolution. After all the negativity of last few months, this brings so much hope. Waiting for the first human foot touch down on Mars in my lifetime.
The pandemic has, in many ways, accelerated advancement and technological development.
Re: Perseverance Rover lands on Mars [video]
#117Apparently the copter was made with off-the-shelf parts.
I wonder if I can cop a replica somewhere, and how it would fly considering it is built for martian air
Re: Perseverance Rover lands on Mars [video]
#118A super exciting and well-executed landing with years of practice ahead of time to make it look easy. Things I'm looking forward to:
- Sample collection and caching for pickup by a future sample return mission
- Flying an experimental helicopter on Mars
- Gauging the habitability of its landing region (Jezero Crater, a paleo-lakebed with preserved river delta and sediments) and hunting for ancient microbial biosignatures (with lasers!)
- A drill (that can cut intact rock cores, rather than pulverizing them like Curiosity)
- An ISRU experiment that makes oxygen from CO2
- Way more advanced autonomous navigation
Re: Perseverance Rover lands on Mars [video]
#119Earlier quoted context omitted.
Well yes, but I meant I watched continuously from 06:45 to 07:15 and it was replay of pre-recorded videos of the rover and no indication on screen it had landed.
odd, I'm in Aus too and I watched the entire thing live with no issues (assuming you're in QLD on EST)
I am. Maybe I turned away at the wrong crucial 30 seconds.
(Edit) I checked the JPL clean feed and none of the last two hours of feed is what I saw being sent on NASA live. I got a walk around the robot, and social media about the kids who named it, and talking heads. Bizarre.
Re: Perseverance Rover lands on Mars [video]
#120Earlier quoted context omitted.
SpaceX hasn't been around as long as NASA. Also, remind me, did NASA develop reusable rockets?
> Also, remind me, did NASA develop reusable rockets? I can't tell if this is sarcasm or not but... yes, of course NASA developed reusable rockets. The space shuttle missions reused the shuttles and the boosters.
They did, you're not wrong at all, but just to add a little bit of clarity the space shuttle was never as reusable as was hoped - it wound up costing a huge amount of time and money to retrofit the shuttle again before each launch. Reusable and Re-usability are different things :P
As far as I know no solid state boosters were ever re-used (how would that work?) - but then again SpaceX doesn't re-use solid state boosters either (because they do not use any)...
Things can be more complex and nuanced than quippy internet back and forth suggest. That's not even touching on the ship-of-theseus problem that is many former NASA engineers working at SpaceX these days.