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L17[05:56:14] <raptop> Althego: OH: ホロ鳥は食べ物じゃない
L18[05:56:38] <raptop> (for full context, picture an angry duck saying that)
L19[06:00:34] <Althego> i dont know what this is
L20[06:01:14] <Althego> meanwhile war criminal denies allegations of appearing in isekai anime
L21[06:01:59] <raptop> Conversation between subaru and reine, with subaru arguing that holobirbs aren't food
L22[06:02:25] <Althego> ah is that when reine teaches her indonesian
L23[06:02:29] <raptop> yeah
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L29[07:30:18] <Deddly> Isn't inginuity going to be tested like right now?
L30[07:31:16] <Althego> suposedly
L31[07:31:29] <Althego> conference in almost 3 hours
L32[07:31:39] <Althego> i guess they need to get back the data and look at it
L33[07:31:42] *** Deddly changes topic to 'Kerbal Space Program official channel | versions: KSP1 1.11.2 | Rules: tinyurl.com/KSP-Rules | "modcall" to call ops | Δv maps: https://i.imgur.com/CHVnEeE.png https://i.imgur.com/gBoLsSt.png | Starship is doing https://www.youtube.com/watch?v=sTA0GTgFn5E | Helicopter is doing! https://mars.nasa.gov/technology/helicopter/#Watch-Online'
L34[07:31:55] <Althego> could be it already landed
L35[07:32:07] <Althego> 30 sec flight
L36[07:32:45] <Deddly> Looks like it already picked up a lot of dust on the solar panels. Hopefully will be able to shake that off
L37[07:33:07] <Althego> yes, somehow it was like that after the first day
L38[07:33:16] <Althego> i thought only moon dust is static
L39[07:33:55] <Deddly> Maybe it wasn't fully protected from the environment on landing
L40[07:34:10] <Althego> that cover looked solid
L41[07:34:18] <Deddly> I never saw the cover
L42[07:35:07] <Deddly> I guess it'll take some days to download video of the flight, too.
L43[07:35:55] <Deddly> https://mars.nasa.gov/resources/25792/ingenuitys-complete-deployment/
L44[07:36:10] <Deddly> Nice images of the deployment :)
L45[07:36:13] <Althego> but before this two things were shed from the rover
L46[07:36:20] <Althego> one flat plate for something
L47[07:36:34] <Althego> and one black box that covered the helicopter
L48[07:36:52] <Deddly> I'm sure you're right.
L49[07:37:48] <Althego> https://www.youtube.com/watch?v=fc9xrjGbuIM
L50[07:38:28] <Deddly> If it falls over on landing, I wonder if Perseverance can put it back on its feet
L51[07:39:07] <Althego> it has an arm so maybe
L52[07:39:10] <Deddly> That's a pretty good protective box.
L53[07:39:41] <Althego> but there was something about if it flips then it is a loss because there is no recovery mechanism
L54[07:39:44] <Deddly> And looking at the beginning of that video, it doesn't look like the box is full of dust
L55[07:45:55] <Althego> the articles are not saying the same. maybe the flight really is in a few hour
L56[07:45:56] <Althego> s
L57[07:49:35] <Deddly> NASA's own website says the flight was planned for 3:30 EDT, which is 8:30 UTC, but the press release won't take place for a couple of hours
L58[07:49:53] <Althego> but they also say live reaction
L59[07:50:08] <Althego> maybe they need to wait for a satellite pass
L60[07:50:13] <Deddly> Perhaps reaction to images?
L61[07:50:40] <Deddly> If they have to wait for a satellite pass, why plan the flight for that time, I wonder?
L62[07:50:51] <Althego> environmental conditions
L63[07:50:58] <Althego> they want high pressure and low wind
L64[07:52:59] <Althego> anyway we cant explain this discrepancy
L65[07:55:45] <Deddly> Maybe they just don't want to get up so early ;)
L66[08:07:38] <Althego> just ignore gravity, way simpler https://www.youtube.com/watch?v=y1X-RqV_6ME
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L68[08:35:10] <Deddly> LOL
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L76[09:45:08] <Althego> https://www.youtube.com/watch?v=p1KolyCqICI
L77[09:45:19] <Althego> 30 minutes until stream
L78[09:46:56] <flayer> nice
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L80[10:16:02] <Althego> it is on
L81[10:16:06] <Deddly> Woo
L82[10:25:38] <Althego> 85% chance of flight with the workaround
L83[10:30:13] <prefixcactus> when will they start receiving the actual data?
L84[10:30:41] <Althego> they mentioned it earlier, was 3x
L85[10:30:48] <Althego> but i dont remember :)
L86[10:30:57] <Althego> so at most 30 minutes
L87[10:30:58] <Althego> 10
L88[10:31:00] <prefixcactus> I suppose the flight (or non-flight) is already taking place on Mars
L89[10:31:14] <Althego> yes as the articles said, it happened hours ago
L90[10:32:03] <prefixcactus> oh, hours even
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L92[10:32:47] <Althego> i cant help it, i always find the voice of this guy funny
L93[10:32:49] <prefixcactus> so there are additional delays on top of the transmission itself?
L94[10:32:53] <prefixcactus> true
L95[10:32:56] <Althego> like some cartoon character
L96[10:33:47] <Althego> so probably what happened they were waiting for an orbiter pass
L97[10:34:03] <prefixcactus> oh, that makes sense
L98[10:34:03] <Althego> usually there is one link per sol
L99[10:34:34] <Mat2ch> First delivery by SpaceX to Mars: Satellite network. ;)
L100[10:34:40] <prefixcactus> it's weird to see all the people wearing facemasks on top of respirators
L101[10:34:43] <Althego> we need that
L102[10:34:43] <Mat2ch> and they will make them pay!
L103[10:35:18] <Althego> them?
L104[10:35:20] <Althego> the martians?
L105[10:36:42] <Althego> 3 m hover, with martian gravity, even if it fails on top, it might survive
L106[10:38:00] <Althego> hehe meanwhile canberra is sending to voyager 2
L107[10:38:20] <Althego> looks like madrid is going to take mro data
L108[10:38:58] <prefixcactus> while the fall shouldn't damage the innards, it could end up upside down and/or damage the blades
L109[10:39:09] <Althego> yes
L110[10:39:25] <Althego> should have sent a kerbal
L111[10:39:31] <Althego> to repair it
L112[10:39:36] <prefixcactus> kek
L113[10:40:04] <prefixcactus> hm, 2500 RPM is on par with large earth-based quadcopters
L114[10:40:12] <Althego> looked like an ubuntu on the laptop
L115[10:40:20] <prefixcactus> yep, definitely
L116[10:40:33] <prefixcactus> spacebuntu
L117[10:40:44] <Althego> 2500 rpm is nothing
L118[10:41:06] <prefixcactus> it is demanding for such rotor diameters
L119[10:41:35] <prefixcactus> the motors should be totally ok with that, but the blades themselves must be extremely meticulously balanced
L120[10:42:14] <Althego> i hope it also imaged the rover too, just as the rover made picture while the heli was hovering
L121[10:42:14] <Mat2ch> that shouldn't be the problem
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L123[10:46:20] <Althego> processing
L124[10:47:28] <Althego> they are loking at some web thingie?
L125[10:48:38] <Althego> unpacked image? does that mean a success? would it take a shot if it didnt fly?
L126[10:49:51] <Mat2ch> No idea
L127[10:50:29] <Althego> ah yes i forgot about the dust
L128[10:50:39] <Althego> i wonder how long such a helicopter could remain operational
L129[10:51:10] <prefixcactus> the speed of those confirmations suggests they're decoding it on a PDP-10 :>
L130[10:51:18] <Althego> hehehe
L131[10:51:54] <prefixcactus> yay terminal time
L132[10:52:05] <Althego> it flew
L133[10:52:38] <Althego> hehe it landed on different altitude
L134[10:52:44] * prefixcactus claps vigorously
L135[10:52:58] <Althego> which is ok with a rough terrain
L136[10:53:10] <Althego> although it shouldnt have moved
L137[10:53:29] <Althego> a shadow
L138[10:53:46] <Althego> so hhow doe sit measur altitude? inertial? maybe the down looking camera too
L139[10:54:01] <prefixcactus> I thought they have a radar/ultrasonic-type altimeter on it, which shows terrain altitude
L140[10:54:46] <Althego> ah it has something for that
L141[10:55:03] <Althego> it made a movie
L142[10:56:36] <prefixcactus> Do they have any GNSS-type sats around Mars?
L143[10:56:47] <Althego> no
L144[10:57:05] <Althego> they have observation or observation and relay combos
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L146[10:58:18] <Althego> but if you want to have position, from orbital images you can get coordinates
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L148[10:58:36] <prefixcactus> Althego: where'd you get the graph? they didn't show it in my stream
L149[10:58:52] <Althego> they did
L150[10:58:56] <Althego> just for a short time
L151[11:00:23] <Althego> anyway i would have been interested in, what the cause of the altititude difference was
L152[11:01:31] <Althego> sensor hysteresis, ins drift, landing position difference, or some other error
L153[11:01:56] <Althego> even if i say the legs distorted a little, they would create higher altitude
L154[11:02:01] <prefixcactus> how much of a difference is there?
L155[11:02:24] <Mat2ch> Althego: https://youtu.be/p1KolyCqICI?t=2310
L156[11:02:32] <Mat2ch> where do you see the different altitude?
L157[11:02:53] <Althego> i though the 0 is the starting point
L158[11:03:04] <Mat2ch> it's not :)
L159[11:03:19] <Althego> so then it was 0 when it was uninitialized
L160[11:03:43] <Mat2ch> just not logging the data, I guess, because it knew it was on the ground
L161[11:03:55] <prefixcactus> looks like it
L162[11:04:08] <Deddly> I would imagine flat line = no data
L163[11:04:10] <Althego> null island strikes on mars too
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L165[11:04:32] <Deddly> Also, that is so cool. Can't wait to see the full video
L166[11:04:33] <prefixcactus> it appears to have landed slightly lower than from where it lifted off
L167[11:04:46] <Althego> and that is ok
L168[11:04:51] <Althego> because there was some force on the legs
L169[11:04:55] <Althego> maybe they bent a little
L170[11:04:57] <prefixcactus> by several cm maybe
L171[11:05:02] <Althego> maybe there is a rock at the measurement point
L172[11:05:14] <prefixcactus> probably the legs just sunk into the dust
L173[11:06:04] <Deddly> Maybe a sandworm ate it
L174[11:06:05] <prefixcactus> and/or there was some buildup in the center due to airflow
L175[11:11:53] <Mat2ch> or the sensor isn't as exact as you
L176[11:13:01] <Mat2ch> *as you think
L177[11:13:08] <Mat2ch> I need a rice cooker.
L178[11:14:19] <Mat2ch> Every time I manage to boil it over and have to scrub the stove afterwards :|
L179[11:14:42] <Althego> hehe
L180[11:14:47] <taniwha> too much water, perhaps
L181[11:14:57] <taniwha> (should be 2x rice by volume)
L182[11:15:39] <darsie> brb
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L184[11:16:01] <Deddly> It'll still boil over if you don't turn down the temperature when it starts boiling :)
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L186[11:16:23] <taniwha> a bit of oil, heat, 1u rice, stir for a bit in hot oil, 2u water, lid, wait for water to boil off. done
L187[11:16:58] <taniwha> (well, mostly boil off, don't want to burn your rice)
L188[11:18:02] <Mat2ch> taniwha: no, I just don't have the patience to wait until it boils and then turn off the heat. Or sometimes I just forget...
L189[11:19:02] <taniwha> forgetting's always a problem :/
L190[11:19:34] <Mat2ch> no patience and then forgetting. :D
L191[11:21:38] <Mat2ch> but on the other hand: Dinner is ready! ;)
L192[11:32:29] <taniwha> always a good thing
L193[11:53:24] <Mat2ch> It was, it was
L194[11:54:31] <Althego> put a camera there, train an neural network to notice boiling water, use that to notify you
L195[12:01:40] <Izaya> rice cooker is probably cheaper and easier
L196[12:01:56] <Izaya> but if you're going to do that have a little view of the camera as a dockapp on your windowmaker
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L200[12:09:59] <prefixcactus> rice cookers are nice
L201[12:10:25] <prefixcactus> especially if they are of the multiprogram variety so that you could cook other stuff in them too
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L203[12:11:16] <prefixcactus> we end up only cooking rice in it anyway tho
L204[12:12:45] <Mat2ch> well, that's why I would only go for the simplest ones with the magnet at the bottom that switches them off :D
L205[12:13:09] <prefixcactus> kerbal recipe: put rice in pan, stir in hot machine oil, put water in fire extinguisher, put pan on top of mainsail, ignite
L206[12:13:36] <Mat2ch> uhh, puffed rice!
L207[12:13:50] <prefixcactus> wait till the dust settles, collect experimental data
L208[12:14:02] <prefixcactus> inspect samples by chewing
L209[12:14:59] <Althego> hehe
L210[12:15:11] <umaxtu> hopefully the cat didn't take a dump in the rice
L211[12:15:35] <prefixcactus> the cat will not go to space today
L212[12:15:46] <JVFoxy> hopefully cellphone didn't get forgotten in rice
L213[12:16:08] <prefixcactus> !mission
L214[12:16:08] <LunchBot> prefixcactus: You stir the tanks. Physics fails you, and you fall through the floor.
L215[12:16:18] <umaxtu> https://imgur.com/yZwHsOV
L216[12:16:30] <Althego> oh no
L217[12:17:57] <JVFoxy> .. mental note: make sure pot has lid on it at all times while having a cat c_c;
L218[12:18:13] <umaxtu> lol
L219[12:18:32] <Deddly> !nextlunch
L220[12:18:32] <LunchBot> Deddly: Chicken salad.
L221[12:18:42] <JVFoxy> mind you, my room mates 5 cats, non of them cares to even go up on the stove
L222[12:18:46] <Mat2ch> .oO( I hate cats sometimes )
L223[12:19:57] <JVFoxy> sister had a cat, parents put a plastic cat turd on the stairs and tried to give her a hard time about the cat making a mess... I hate my parents sometimes.
L224[12:20:13] <umaxtu> wow
L225[12:20:27] <Althego> lol
L226[12:20:48] <Althego> entitled parents
L227[12:21:24] <JVFoxy> sister didn't fall for it though...
L228[12:22:15] <Althego> https://www.youtube.com/watch?v=vPB2g1y2VFk
L229[12:24:49] <JVFoxy> I miss my little fuzzies.. sadly, getting another is proven hard due to pandemic. :(
L230[12:26:09] <umaxtu> mine are old now. already had to separately rush them to the vet once each because we thought they were dying.
L231[12:26:46] <Deddly> Althego, very amusing
L232[12:31:53] <JVFoxy> mine passed a few years ago. Was also same time a number of people I knew of who were having pets pass on as well
L233[13:31:04] <Deddly> I love animals, but that part destroys me
L234[13:33:00] <Deddly> I predict that 2025 will be the great petpocalypse
L235[13:33:28] <Deddly> (masses of people got themselves pets during the pandemic)
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L237[13:38:31] <prefixcactus> there will be several species-specific waves
L238[13:38:49] <prefixcactus> !mission
L239[13:38:49] <LunchBot> prefixcactus: You build a micro surfboard so you can surf the microwaves. Wernher von Kerman orders Bob to buy him a dozen brattwursts on the way back from the supermarket.
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L241[14:09:12] <Althego> another stream is coming https://www.youtube.com/watch?v=JM_2hmdRnfQ
L242[14:09:37] <Althego> actually where was the horizontal picture from the drone? maybe they got it now
L243[14:21:02] <Althego> only when people are standing next to the rocket can you realize how big it is https://twitter.com/SpaceX/status/1383772720500903942
L244[14:22:14] <Althego> the falcon 9 is transported and handled horizontally. "why dont they just" build a sort of car wash for it, rocket goes through and a ring of sprinklers sprays water. would get rid of that ugly soot
L245[14:23:46] <Deddly> I think they are using the soot as a selling point right now. Soot means it is reusable, and it's a reminder to everyone who sees it
L246[14:24:59] <Althego> spacex is like tesla. they dont need ads
L247[14:25:19] <Deddly> Ingenuity's camera must have a crazy fast shutter to capture the rotors so sharply in that image of its own shadow
L248[14:25:38] <Althego> i was surprised too
L249[14:26:30] <Deddly> Black and white, low res also helps
L250[14:26:31] <Althego> but it is not crazy high rpm, in the range a normal induction motor would do
L251[14:26:53] <Deddly> What was it, 2500 RPM?
L252[14:27:31] <Althego> 2400
L253[14:27:51] <Deddly> Interesting. BBC says 2500. The rotors are 1.2 metres long
L254[14:28:13] <umaxtu> BBC uses British minutes
L255[14:28:17] <Althego> hehehe
L256[14:28:17] <Deddly> LOL
L257[14:28:37] <Deddly> I guess that 1.2 metres means from tip to tip
L258[14:30:05] <Deddly> That means the tips of the rotors travel 3.77 metres per second
L259[14:30:28] <Deddly> Er no
L260[14:30:35] <Althego> wiki says 0.7 mach
L261[14:30:52] <Althego> but i dont know the speed of sound in carbon dioxide
L262[14:30:53] <Deddly> 3.77 metres for a single rotation, I meant to say
L263[14:31:56] <Deddly> It travels those 3.77 metres 2400 times per second
L264[14:32:51] <Deddly> Maths was never my strong point, but doesn't that add up to over 9000 m/s?
L265[14:33:00] <Althego> rpm not rps
L266[14:33:10] <Deddly> Ah yes
L267[14:33:25] <Deddly> 150
L268[14:33:51] <Deddly> 540 KMH
L269[14:34:07] <Deddly> 336 MPH
L270[14:36:25] <Althego> that seems kind of low
L271[14:36:37] <Althego> at least if i compare to standard atmosphere air
L272[14:36:49] <Althego> but it is way colder and carbon dioxide
L273[14:37:01] <Althego> i dont even know how speed of sound changes with temperature
L274[14:37:41] <Deddly> I think temperature only has an impact because it changes the air density
L275[14:38:15] <Althego> seems to be a function of square root of temperature. so yes it gets lower
L276[14:38:29] <Deddly> Google tells me that the speed of sound on Mars is 240 m/s
L277[14:38:49] <flayer> but what is the speed of your pants on venus?
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L279[14:38:58] <Althego> lol
L280[14:39:06] <Althego> what does that supposed to mean
L281[14:39:12] <Deddly> flayer, they dissolve at 5g/s
L282[14:39:16] <Althego> there isnt, they evaporate
L283[14:39:29] <Althego> or yes rather dissolve in supercritical carbon dioxide
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L286[15:32:22] <Mat2ch> Althego: the soot is probably burnt into the paint
L287[15:32:29] <Mat2ch> so no easy cleaning
L288[15:33:08] <Althego> hmm, can be, after all it came from a fire
L289[15:33:34] <Mat2ch> I'm not sure if it is the fire itself or the heat shield below that partially gets ablated
L290[15:34:57] <Mat2ch> but they are burning Kerosin there, which has Carbon in it, so it could be unburnt Carbon that gets integrated into the paint
L291[15:35:43] <Mat2ch> (and if I read the translation of soot correctly it is really meaning "Unburnt Carbon"
L292[15:35:45] <Mat2ch> )
L293[15:36:31] <Deddly> If you watch video from on-board the booster during re-entry and landing, you can see that soot builds up on the camera lens during burns
L294[15:37:03] <Deddly> And since they are running a ruel-rich ratio, there is a lot of unburned fuel
L295[15:37:03] <Mat2ch> that's true. And somehow it gets removed, too. Some coating maybe?
L296[15:37:39] <Deddly> Perhaps it's soot mixed with water vapour?
L297[15:38:13] <Deddly> They could also have a transparent lens protector that rotates
L298[15:40:43] <Mat2ch> possible
L299[15:40:47] <Mat2ch> like F1 cars ;)
L300[17:06:40] <FLHerne> Mat2ch: At least some of the soot comes off easily, the astronauts doodled white marks on it with their fingers
L301[17:06:59] <Althego> hehe
L302[17:07:26] <FLHerne> https://planetary.s3.amazonaws.com/web/assets/pictures/spacex-crew-2-dirty-fingers.jpg
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L308[18:02:36] <Althego> stream started
L309[18:02:46] <Althego> https://www.youtube.com/watch?v=JM_2hmdRnfQ
L310[18:12:45] <Althego> also there is an unrelated scott video
L311[18:28:22] <Althego> hmm, no color image
L312[18:28:42] <Althego> lol they got an aircraft designation
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L314[18:31:42] <Deddly> "like flying 3 times higher than the Himalayas" <-- Does that mean they could take off from Everest and fly up to 24,000 m?
L315[18:32:07] <Althego> doubt it has enough battery for that. also higher gravity
L316[18:32:53] <Deddly> Well, I meant the altitude rather than actually being able to do that
L317[18:33:04] <Deddly> But year, gravity
L318[18:33:07] <Deddly> yeah*
L319[18:33:14] <Althego> certainly himalaya altitude and temperature is nothing to this
L320[18:33:30] <Althego> it may be overpowered
L321[18:33:40] <Althego> can it be damaged ffrom that?
L322[18:33:58] <Deddly> From what? I'm behind on the stream right now
L323[18:34:12] <Althego> if we tried to fly it from mount everest
L324[18:34:39] <Deddly> Can it be damaged from being overpowered?
L325[18:34:43] <Althego> yes
L326[18:34:51] <Deddly> I would imagine not
L327[18:34:52] <Althego> it is designed for low pressure
L328[18:36:06] <Deddly> I suppose if they spooled it up to max RPM and lift it could theoretically rip the blades off
L329[18:38:13] <Althego> next flight on thursday
L330[18:38:34] <Deddly> He says 2600 RPM
L331[18:43:13] <Deddly> Nice to see the whole video. Will be cool when they get the rest of the frames and the zoomed-in material
L332[18:43:38] <Althego> yes, that is already a lot of frames
L333[18:43:43] <Althego> way more i hoped for
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L337[19:16:24] <Deddly> It seems to me that they god a lot more material in a shorter time than they did from the landing
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L339[19:16:46] <Deddly> Perhaps their uplink is faster now that the rover is fully deployed?
L340[19:16:50] <Deddly> got*
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L342[19:21:53] <Althego> what, 2026 lander?
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L347[19:39:26] <umaxtu> Althego, sample return?
L348[19:39:38] <Althego> yes they mentioned it
L349[19:39:44] <Althego> later
L350[19:40:00] <Althego> but as i said some weeks (?) ago, it is not even named yet
L351[19:40:39] <Althego> the only thing wiki knows of mars 2026 is a polar lander thing
L352[19:40:58] <Althego> but that is most certainly something else
L353[19:41:15] <Althego> and it uses the same base as phoenix and insight
L354[19:41:18] <flayer> maybe the spacex thing can bring the lander into orbit around mars
L355[19:41:50] <Althego> there is a 2024 2026 spacex thing for mars, but i almost laughed about it being manned
L356[19:44:02] <Althego> oh wait they are not in order
L357[19:44:03] <Althego> lol
L358[19:44:12] <Althego> there are tweo other mars things
L359[19:44:16] <Althego> one indeed is the sample return
L360[19:45:23] <Althego> but the sample return is still sketchy
L361[19:45:52] <Althego> https://en.wikipedia.org/wiki/List_of_missions_to_Mars#Proposals
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