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EpicMegatrax
from Greatest Hits on 2022-09-26 23:36 [#02621197]
Points: 25264 Status: Regular
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so nasa is about to crash a spaceship it flew 7 or 11 million miles on an ion drive into an asteroid to alter its trajectory; it's already deployed a little data relay drone to record the results...
...and i'm like: wait, ion drive? that works now? it turns out i missed a step there, deep space 1 used an ion drive. first apparently after... hall effect? that can actually move shit?
but, really, same with ion drive. it's worked for decades, but it was never practical -- trying to move a boat with an ant fart, except the ant never stops farting, and you gradually speed up. deep space 1, that this makes sense now; that thing has taken its time. i don't really understand how to translate N*S to a coherent picture, but i do see from some stat chart that it's about twice as efficient for the same KW/h, and then nonlinear... bump it up from 5 to 7 KW/h and it's almost an order or magnitude stronger
and you know what? it looks exactly like you'd want an ion drive to look. very gorgeous and sci-fi
then i read: 2027 we will launch some shit with better ion drives to shower down a grip of drones on jupiter's moon titan circa 2034. and they'll obviously have cameras
just kind of like, i hope i live long enough to see that. photographs from the surface of jupiter's moon titan. LAZY_TITLE
space is getting pretty serious.
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EpicMegatrax
from Greatest Hits on 2022-09-27 00:07 [#02621198]
Points: 25264 Status: Regular
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LAZY_TITLE ~ 8min until explosion
stinks, bangs, and booms -- often cited as what gets most children into science
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EpicMegatrax
from Greatest Hits on 2022-09-27 00:22 [#02621199]
Points: 25264 Status: Regular
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they got some really good pictures. mad boffins even managed to time it so... last frame on the feed they only have about 1/8 of the image, the first 1/8 rows of pixels, rest is red because that's when it blew up
and this is like someone repeatedly taking polaroids, and madly jamming them into a fax machine in lieu of a livestream, from seven million miles away. i feel compelled to say this because i'm not sure anyone will even notice: they completely nailed the knife edge of the timing of when the opted to transmit images to the point where the last frame is literally interrupted by impact and... this thing had no sensors, just a camera. that is some damn fine coding work
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EpicMegatrax
from Greatest Hits on 2022-09-27 00:26 [#02621200]
Points: 25264 Status: Regular
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LAZY_TITLE
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Hyperflake
from Wirral (United Kingdom) on 2022-09-27 03:16 [#02621203]
Points: 31038 Status: Regular
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just been reading about this, space is the place
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kei9
from Argentina on 2022-09-27 03:18 [#02621204]
Points: 425 Status: Lurker
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my favorite thing about space is how little we know. even with all this money, talent and effort put in we are not even scratching the surface it seems. the fundamental questions are still unresolved even with all this technical progress. how can something come from nothing? is there soemthing smaller than preons? how large are the large scale structures of the universe? what is consciousness? we don't even have a proper definition for "life"
I rather like human experience being like this
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ijonspeches
from 109P/Swift-Tuttle on 2022-09-27 07:33 [#02621208]
Points: 7845 Status: Regular | Followup to kei9: #02621204 | Show recordbag
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yeah! i´d love to find out about most of it last minute tho
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ijonspeches
from 109P/Swift-Tuttle on 2022-09-27 07:38 [#02621209]
Points: 7845 Status: Regular | Show recordbag
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ion drive works, as far as i remember there just hasnt been a mission suited for a test drive. were not exactly putting all our efforts and money in space right now which absolutely understandable. way to go now. love the asteroid altering efforts. this might come in handy some time. of course the biggest rock right now is climate change and water/soil management. but it took more than one rock to take the dinosaurs down too, so it would be good to be able to dodge that bullet.
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ijonspeches
from 109P/Swift-Tuttle on 2022-09-27 07:39 [#02621210]
Points: 7845 Status: Regular | Show recordbag
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rock = cock
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ijonspeches
from 109P/Swift-Tuttle on 2022-09-27 07:53 [#02621211]
Points: 7845 Status: Regular | Followup to EpicMegatrax: #02621197 | Show recordbag
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that dragonfly looks rad!! love to see that happening...
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