Recent comments in /f/space
george-its-james t1_j6j6prr wrote
Reply to comment by FunctionFluffy4932 in PNW Winter Moon. Taken with my Canon M100 and 200mm zoom lens. by FunctionFluffy4932
If you told people it was shot in 1969 they'd probably believe you ;) that's what makes it so cool IMO.
MaintenanceInternal t1_j6j6npg wrote
Reply to What kind of items can I buy for my class that would be used on a Shuttle / ISS? by glastonbury13
Whirlpool Corp made freeze dried ice cream for Nasa.
Funkybeatzzz t1_j6j6mve wrote
Reply to What kind of items can I buy for my class that would be used on a Shuttle / ISS? by glastonbury13
Not sure what to buy, but check out astronaut Chris Hadfield’s YouTube vids. This is one I used to show a lot:
ErinBLAMovich t1_j6j6jjk wrote
Reply to Anyone very travelled to a rocket launch. by sddk1
Posting because I'd like to know too. Always wanted to see a launch.
Who_DaFuc_Asked t1_j6j6dwp wrote
Reply to comment by raulduke1971 in Beautiful New Hubble Photo Shows Hot, Young Variable Stars in the Orion Nebula by mzpip
"I'm looking to settle with a nice K-type star within a 100 light year radius"
Linktry t1_j6j68q2 wrote
Reply to comment by Creepy_Toe2680 in NASA tested new propulsion tech that could unlock new deep space travel possibilities by Creepy_Toe2680
Reminds be of the sonic burst from learn how to fly
hagfish t1_j6j5xdm wrote
Reply to comment by amxorca in ‘Extraordinary’ footage shows one of the closest known approaches of a near-Earth object — On 26 Jan. 2023, asteroid 2023 BU was about 2,200 miles above the surface of the Earth by marketrent
Something - anything - disappating that amount of energy that quickly, is going to make a big bang, even if it doesn't leave a huge crater. The Tunguska Event didn't leave a crater, but it would have 'broken a few windows' if it had occurred near a built-up area. If by 'minimal threat to life' you mean 'all life on Earth', then - absolutely - this would have been a local disaster - a few hundred square miles.
carbonbasedlifeform t1_j6j5gfl wrote
Reply to comment by hawaiianthunder in NASA tested new propulsion tech that could unlock new deep space travel possibilities by Creepy_Toe2680
Actually it makes it harder. Without air to use as a heat transfer medium you don't have anything to bleed heat into.
Who_DaFuc_Asked t1_j6j5fow wrote
Reply to Habitable Planet Reality Check: TOI-700e Discovered by NASA’s TESS Mission by ye_olde_astronaut
TLDR from the article:
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TOI-700e is about 101 light years away, it's in the habitable zone of a red dwarf star (so it'll be tidally locked)
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orbital period is 27.8 days
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it is around the same diameter as the Earth, slightly more massive
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"87% chance" that it's a rocky planet
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it is pretty much on the very inner edge of the habitable zone, like it's possibly slightly too close
IMO seems unlikely to be habitable. I think a gas giant in the habitable zone of a red dwarf would be more likely if it has a possibly habitable rocky moon around the size of one of Jupiter's moons. If it has multiple moons, maybe two of them will be habitable.
The moon wouldn't be tidally locked to the star, it would be orbiting the gas giant, so it should get more evenly distributed sunlight
MayOrMayNotBePie t1_j6j58dm wrote
Reply to ‘Extraordinary’ footage shows one of the closest known approaches of a near-Earth object — On 26 Jan. 2023, asteroid 2023 BU was about 2,200 miles above the surface of the Earth by marketrent
Extraordinary footage? This is exactly what it looks like driving through a snow storm at night lol.
cjameshuff t1_j6j4eq9 wrote
Reply to comment by JustAPerspective in NASA tested new propulsion tech that could unlock new deep space travel possibilities by Creepy_Toe2680
This isn't a discovery, it's not existing technology, nobody assumed it wouldn't work, and it's not clear yet how well it actually will work. It's an early test of a new technology that has been in the conceptual stage for decades, has only recently been gotten to work, but which has been expected to improve performance.
[deleted] t1_j6j4b09 wrote
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Who_DaFuc_Asked t1_j6j48cb wrote
Reply to Hyperion is the largest of Saturn's irregular, nonspherical moons. Hyperion's mean radius is 135 km, but as it's potato-shaped, its shape can be described in terms of its diameter along its three axes: 410 x 260 x 220 km. Credit: NASA/JPL/Caltech/SSI by MistWeaver80
I think it's cool that it's "kinda-sorta round". Like it's obviously not spherical but it does have a relatively defined smooth-ish shape.
[deleted] t1_j6j43g8 wrote
[deleted] t1_j6j3drt wrote
[deleted] t1_j6j39az wrote
Reply to comment by Novabella in The Green Comet over Green Springs, Virginia (OC) by MrJackDog
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[deleted] t1_j6j2huv wrote
Reply to comment by danielravennest in NASA tested new propulsion tech that could unlock new deep space travel possibilities by Creepy_Toe2680
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SmokeyMcPoticus t1_j6j2f2c wrote
Reply to comment by Greedy-Creme-995 in Anyone very travelled to a rocket launch. by sddk1
Sounds like a no-refund type issue.
cjameshuff t1_j6j2cwu wrote
Reply to comment by qa2fwzell in NASA tested new propulsion tech that could unlock new deep space travel possibilities by Creepy_Toe2680
Realistically, anything Earth-like would likely be uninhabitable. Aside from the forward and backward contamination issues, an entirely alien biosphere wouldn't contain any diseases or poisons adapted to us, but would be saturated with things that are moderately to severely toxic or just noxious, and complex organic substances that our immune systems have never encountered before, some of which would be likely to cause severe allergic reactions.
In short, it'd probably stink horribly and send you into anaphylactic shock, and if it didn't, it'd probably have environmental toxins that would kill you slowly. Habitable environments are those with the natural resources needed to support habitats where we can support Earth life, not those already filled with alien life.
Mars? Oh no, perchlorates! Yeah, about 0.5-1% of the regolith consists of salts twice as toxic as table salt that are unstable, easily washed out with water or decomposed by heat or reducing agents, and which do not bioaccumulate. Worry more about heavy metals and long-lived organic compounds leaching out of plastics and such.
[deleted] t1_j6j26m8 wrote
Greedy-Creme-995 t1_j6j239s wrote
Reply to Anyone very travelled to a rocket launch. by sddk1
Do not stand directly under the rocket. My buddy Joe did that and it didn’t end well for him
Atari__Safari t1_j6j1u1d wrote
Reply to comment by King_Pecca in ‘Extraordinary’ footage shows one of the closest known approaches of a near-Earth object — On 26 Jan. 2023, asteroid 2023 BU was about 2,200 miles above the surface of the Earth by marketrent
Exactly!
Can’t get rich off of this. Paying someone to bury your carbon footprint, haha yes that works.
Escapyst t1_j6j1hqe wrote
Reply to NASA tested new propulsion tech that could unlock new deep space travel possibilities by Creepy_Toe2680
Am I the only one who sees the great flame sword descending from space?
[deleted] t1_j6j1728 wrote
Reply to comment by Marxbrosburner in Number of manned orbital launches by year, 1961-2022 by firefly-metaverse
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MetallicDragon t1_j6j73zf wrote
Reply to comment by hawaiianthunder in NASA tested new propulsion tech that could unlock new deep space travel possibilities by Creepy_Toe2680
On the contrary, it makes it much harder. On earth, you can radiate away heat by direct contact with air. No air in space means the only way to dump heat is by black body radiation.