Recent comments in /f/space
JesseLaces t1_jdl2blr wrote
Reply to comment by HeebieMcJeeberson in If earth was a smooth sphere, which direction would water flow when placed on the surface? by Axial-Precession
Towards instead of away as the earth spins? I feel like the poles would make more sense, no?
Ausmerica t1_jdl28qi wrote
Reply to comment by PoppersOfCorn in If earth was a smooth sphere, which direction would water flow when placed on the surface? by Axial-Precession
Earth spins, inertia would drive water to the equator. Disregarding the moon.
zakabog t1_jdl27g0 wrote
Reply to If earth was a smooth sphere, which direction would water flow when placed on the surface? by Axial-Precession
Depends, is the earth still rotating? If so, pretty much the same way as the winds. You'd have some local variations due to the weather, but more or less it would behave like the wind.
[deleted] t1_jdl1nzy wrote
Reply to comment by nednobbins in NASA prepares for a Sept. 24 delivery — the first time a U.S. mission returns an asteroid sample to Earth by marketrent
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PoppersOfCorn t1_jdl1cos wrote
Reply to If earth was a smooth sphere, which direction would water flow when placed on the surface? by Axial-Precession
I think it spread out until level. Remember, down is towards the centre of mass
HeebieMcJeeberson t1_jdl116l wrote
Reply to If earth was a smooth sphere, which direction would water flow when placed on the surface? by Axial-Precession
On a smooth dry sphere it would flow toward the equator.
OldWrangler9033 t1_jdkzjbe wrote
Reply to comment by SFerrin_RW in Rocket Lab targets $50 million launch price for Neutron rocket to challenge SpaceX’s Falcon 9 by cnbc_official
I think it depends on frequency of launches. If they end up being as reusable and more relaunchable than Falcon 9, they could possibly catch up.
OldWrangler9033 t1_jdkzct1 wrote
Reply to Rocket Lab targets $50 million launch price for Neutron rocket to challenge SpaceX’s Falcon 9 by cnbc_official
Depends how well it performs in the long term. Barring Starship/Super Heavy's approval and development flights work out, it will take bit catchup with Falcon 9.
SpaceX maybe hurting after Rocket Lab's Neutron and hopefully Terran R work out in the end.
IJourden t1_jdkuoma wrote
Reply to Advisory group backs European human spaceflight program using commercial approaches by Zhukov-74
When deep space exploration ramps up, it’ll be the corporations that name everything.
Decronym t1_jdkqyga wrote
Reply to Rocket Lab targets $50 million launch price for Neutron rocket to challenge SpaceX’s Falcon 9 by cnbc_official
Acronyms, initialisms, abbreviations, contractions, and other phrases which expand to something larger, that I've seen in this thread:
|Fewer Letters|More Letters| |-------|---------|---| |ASDS|Autonomous Spaceport Drone Ship (landing platform)| |DoD|US Department of Defense| |EELV|Evolved Expendable Launch Vehicle| |GEO|Geostationary Earth Orbit (35786km)| |GTO|Geosynchronous Transfer Orbit| |HLS|Human Landing System (Artemis)| |LEO|Low Earth Orbit (180-2000km)| | |Law Enforcement Officer (most often mentioned during transport operations)| |LOX|Liquid Oxygen| |MECO|Main Engine Cut-Off| | |MainEngineCutOff podcast| |NET|No Earlier Than| |NSSL|National Security Space Launch, formerly EELV| |RLV|Reusable Launch Vehicle| |RTLS|Return to Launch Site| |SLS|Space Launch System heavy-lift| |SSTO|Single Stage to Orbit| | |Supersynchronous Transfer Orbit| |ULA|United Launch Alliance (Lockheed/Boeing joint venture)| |USSF|United States Space Force| |VTVL|Vertical Takeoff, Vertical Landing|
|Jargon|Definition| |-------|---------|---| |Raptor|Methane-fueled rocket engine under development by SpaceX| |Starlink|SpaceX's world-wide satellite broadband constellation| |retropropulsion|Thrust in the opposite direction to current motion, reducing speed|
^([Thread #8722 for this sub, first seen 25th Mar 2023, 02:36]) ^[FAQ] ^([Full list]) ^[Contact] ^([Source code])
TheBroadHorizon t1_jdkqg7d wrote
Reply to comment by vibingjusthardenough in Rocket Lab targets $50 million launch price for Neutron rocket to challenge SpaceX’s Falcon 9 by cnbc_official
They were founded in NZ and have their primary launch site there but the company relocated their headquarters to California several years ago. They've launched multiple payloads for both NASA and the US military.
[deleted] OP t1_jdkpvtz wrote
Reply to comment by ThrowawayPhysicist1 in I am 27 years old! Am I missing out on being an astronomer? by [deleted]
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VengenaceIsMyName t1_jdkp669 wrote
Reply to Rocket Lab targets $50 million launch price for Neutron rocket to challenge SpaceX’s Falcon 9 by cnbc_official
A long time ago Elon claimed that he wanted increased competition in the launch services sector. Let’s see if he still feels that way
Snoo-71741 OP t1_jdko80o wrote
Reply to comment by DeadWalletDoofus in Career Advice by Snoo-71741
That sounds like a really fulfilling job! What do you do as part of the team?
Snoo-71741 OP t1_jdknxk8 wrote
Reply to comment by Yee_Haw6969 in Career Advice by Snoo-71741
Thanks, that does sound like really cool research. But I’m looking to stay in industry to avoid the pressure of publishing papers in academia
DimorphosFragment t1_jdkmtrm wrote
Reply to comment by blipman17 in NASA prepares for a Sept. 24 delivery — the first time a U.S. mission returns an asteroid sample to Earth by marketrent
The first Hayabusa spacecraft malfunctioned during the sample collection attempt. It did manage to return several tiny grains of dust from an asteroid despite the sample collection mechanism not operating. There is quite a bit of information about it at wikipedia.
DBDude t1_jdkl6kn wrote
Reply to comment by pm_me_ur_ephemerides in Rocket Lab targets $50 million launch price for Neutron rocket to challenge SpaceX’s Falcon 9 by cnbc_official
Estimated $15 million for the upper stage, the most expensive part of the launch.
VicenteOlisipo t1_jdkl1ms wrote
Reply to comment by sithelephant in Advisory group backs European human spaceflight program using commercial approaches by Zhukov-74
Play whatever semantic games you want, loads of federal money went into developing the private tech instead of going to NASA or other federal tech funding. I'm not saying it was a bad bet, I'm saying is we can't just achieve the same results but adopting similar looking policies except without the money.
[deleted] t1_jdkkzby wrote
Reply to comment by New_Poet_338 in Rocket Lab targets $50 million launch price for Neutron rocket to challenge SpaceX’s Falcon 9 by cnbc_official
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VicenteOlisipo t1_jdkkm99 wrote
Reply to comment by sithelephant in Advisory group backs European human spaceflight program using commercial approaches by Zhukov-74
Ok, but that's theoretical math. In reality that effeciency actually needs even more money to be developed. Unless we just outsource it to the Americans.
New_Poet_338 t1_jdkjbkj wrote
Reply to comment by SuaveMofo in Rocket Lab targets $50 million launch price for Neutron rocket to challenge SpaceX’s Falcon 9 by cnbc_official
Many? There are three Starships ready to launch as soon as they are tested (though they pribably won't be) and one tested and ready for launch next month. SpaceX can build one in about two months now. Starship will be on the moon in two or (more likely) three years. It will probably be launching starlink satellites by year end. Of all the new generation, it is the closest to operation.
bookers555 t1_jdkg6e2 wrote
Reply to comment by connart in Scientists explain alien comet 'Oumuamua's strange acceleration by Sariel007
The strange part of it isn't the acceleration, but the fact that it's not moving at all in regards to the rest of the galaxy.
vibingjusthardenough t1_jdkfk7u wrote
Reply to comment by iceagegoatee in Rocket Lab targets $50 million launch price for Neutron rocket to challenge SpaceX’s Falcon 9 by cnbc_official
I’m not too well-versed on the specifics of RL’s business and am rusty on US spaceflight conventions but are they a viable option for USSF or NASA since they’re based in NZ?
SuaveMofo t1_jdkfha7 wrote
Reply to comment by New_Poet_338 in Rocket Lab targets $50 million launch price for Neutron rocket to challenge SpaceX’s Falcon 9 by cnbc_official
Falcon 9 is still very much current generation. I look forward to starship but it's still many years away from being commercially used.
sithelephant t1_jdl2dkh wrote
Reply to comment by VicenteOlisipo in Advisory group backs European human spaceflight program using commercial approaches by Zhukov-74
Yes, but also no.
There is technological or process advancement savings for which this argumemnt might be made.
And then there is savings from not doing things in a knowingly financially inefficient but politically expedient manner.