Recent comments in /f/space
GimmyJrimble t1_j5l61qb wrote
If you were traveling with the wind there would probably be a ghastly breeze with a bit of a chill in the air.
BLooDCRoW t1_j5l4pkb wrote
Reply to comment by TecumsehSherman in NASA suspends efforts to fully deploy Lucy solar array by ye_olde_astronaut
"NASA to declare bankruptcy after catastrophic deployment failure."
shotsallover t1_j5l3wrs wrote
Reply to comment by danielravennest in NASA suspends efforts to fully deploy Lucy solar array by ye_olde_astronaut
Or, maybe they use the engines to shake it loose so they can finish deploying it?
[deleted] t1_j5l3smj wrote
Reply to Stereoscopic GIF of a NASA simulation of two binary black holes orbiting by EmergeHolographic
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FatiTankEris t1_j5l3q4z wrote
Imagine incredibly ear rupturing, sky tearing screaming. That should approximate the winds.
TecumsehSherman t1_j5l3bwa wrote
Reply to comment by edstirling in NASA suspends efforts to fully deploy Lucy solar array by ye_olde_astronaut
"Space program shuts down! 'We just couldn't deploy the dammed solar panels' says former Chief Space Person"
[deleted] t1_j5l2h1u wrote
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KristnSchaalisahorse t1_j5l0k8v wrote
Reply to comment by ProfessorEsoteric in Not much but finally moved the the countryside and actually have a nights sky. by ProfessorEsoteric
In the meantime, if you don’t have some already, I highly recommend getting some binoculars! They’re a great and inexpensive way to explore the sky in greater detail (much better quality option here). They won’t show you Saturn’s rings, but even from a city they allow you to see Jupiter’s four brightest moons, craters on our moon, hundreds of stars & satellites invisible to the naked eye, Venus’ crescent phase, Uranus, Neptune, etc. From darker skies you can see even more of course, like the Andromeda galaxy, Orion Nebula, awesome star clusters like the Pleiades, comets (when applicable- like right now) etc. Plus, they're great for daytime views and they’ll still be incredibly useful if/when you have a telescope.
Jassida t1_j5kz8t0 wrote
Reply to comment by TLRsBurnerAccount in Have you ever thought about what it sounds on jupiter by Western_Home6746
It’s like how a stiff breeze sounds to my cats coming through the letterbox. Absolutely terrifying
[deleted] t1_j5kyr4j wrote
Reply to comment by Dinosalsa in Have you ever thought about what it sounds on jupiter by Western_Home6746
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hatschi_gesundheit t1_j5kxlev wrote
Reply to comment by KaneHau in Jupiter by hackintoshfun
But would not the heavier/denser elements sink to the core eventually ? It might be a molten core or some other, more exotic aggregation state, but still. Certainly not a gas.
Usernamenotta t1_j5kx9pe wrote
Reply to Spacecraft design by [deleted]
You do not want thrusters at the front because you might have something similar to the Coanda effect, where the flow of gasses will tend to stick to the surface of the material due to superficial tension. This means the surface of the ship is going to be constantly battered.
If you wanted, I guess you could go for a 'Hammerhead' design, where the thrusters are at the front, but placed at a certain distance from the fuselage. This however increases the construction costs and the overall mass of the craft.
Such designs do however present the advantage of having the motor force at the front, which creates a bit more stability. But the much larger cross-section and mass might offset this advantage
space-ModTeam t1_j5kx787 wrote
Reply to Spacecraft design by [deleted]
Hello u/The_Godless_Author, your submission "Spacecraft design" has been removed from r/space because:
- Such questions should be asked in the "All space questions" thread stickied at the top of the sub.
Please read the rules in the sidebar and check r/space for duplicate submissions before posting. If you have any questions about this removal please message the r/space moderators. Thank you.
[deleted] OP t1_j5kworn wrote
Reply to comment by The_Godless_Author in Spacecraft design by [deleted]
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lioncub2785 t1_j5kwlp4 wrote
Equally interesting question is how would methane rivers and other large bodies of liquid would sound in satellites like Titan, accounting for their respective atmospheric circumstances?
[deleted] OP t1_j5kvy6s wrote
Reply to Spacecraft design by [deleted]
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The_Godless_Author t1_j5kv02f wrote
Reply to comment by [deleted] in Spacecraft design by [deleted]
Yea, a trailing design would necessitate that the engines be slightly angled away so the payload wouldn’t be in the firing line, but I’ve heard arguments that it would be easier to make due to being tensile rather than rigid in nature and so having better resistance to g force. I’ve also heard the argument that you could just extend the tether to save mass on shielding by just increasing the distance between the modules and the engines
Also, wouldn’t the effectiveness of a solar sail decrease as you get further away from a star?
YourWiseOldFriend t1_j5kuzfa wrote
I don't wonder, I've heard it. Jupiter is a radio source, you can actually listen to it.
hheeeenmmm t1_j5kuqoe wrote
Reply to comment by hermanworm in Have you ever thought about what it sounds on jupiter by Western_Home6746
Science started when one human got another to eat a mushroom
[deleted] OP t1_j5kuju0 wrote
Reply to Spacecraft design by [deleted]
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outer_fucking_space t1_j5ku58t wrote
It probably sounds like the band Conan. Crushingly heavy.
NameUnavail t1_j5ktpvf wrote
Reply to Spacecraft design by [deleted]
There's three major advantages to having the engines in the back:
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The Engine truss provides a convenient structural carrying element for stacking stages, since the engines need to a structural truss to attach too anyway.
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Because acceleration from the engine causes the fuel to pool at the rear end of the tank, the fuel outlet has to be there. Engines in the back means both less head required for the turbopumps, since they are aided by the acceleration of the vehicle, rather than having to suck fuel against it. For the same reasom they'd also be much less prone to fuel cavitation. And lastly the engines being close to the fuel outlet obviously means significantly shorter feed lines.
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Not blasting hot exhaust gases past/against your big tank of explosive fuels.
All 3 points are most crucial for chemical high thrust engines. For things like ion drives they are less relevant.
[deleted] t1_j5ktn8u wrote
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[deleted] t1_j5ktked wrote
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Lo_zone11 t1_j5l6xik wrote
Reply to comment by [deleted] in Have you ever thought about what it sounds on jupiter by Western_Home6746
May be comforting to hear while life as we know it loses all solidity 😄