Crew-2 Prelaunch Discussion & Updates Thread
Crew-2 Prelaunch Discussion & Updates ThreadThis is your r/SpaceX host team bringing you live coverage of the first crew rotation long duration flight!Quick FactsWill be added shortlyEventsWill be added shortlyTimelineTimeUpdateThread postedWebcastsNASA TV on YoutubeLinks & ResourcesComing soonParticipate in the discussion!First of all, launch threads are party threads! We understand everyone is excited, so we relax the rules in these venues. The most important thing is that everyone enjoy themselvesPlease constrain the launch party to this thread alone. We will remove low effort comments elsewhere!Real-time chat on our official Internet Relay Chat (IRC) #SpaceX on SnoonetPlease post small launch updates, discussions, and questions here, rather than as a separate post. Thanks!Wanna talk about other SpaceX stuff in a more relaxed atmosphere? Head over to r/SpaceXLounge
Submitted April 15, 2021 at 09:56PM by ElongatedMuskrat
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Crew-2 Prelaunch Discussion & Updates ThreadThis is your r/SpaceX host team bringing you live coverage of the first crew rotation long duration flight!Quick FactsWill be added shortlyEventsWill be added shortlyTimelineTimeUpdateThread postedWebcastsNASA TV on YoutubeLinks & ResourcesComing soonParticipate in the discussion!First of all, launch threads are party threads! We understand everyone is excited, so we relax the rules in these venues. The most important thing is that everyone enjoy themselvesPlease constrain the launch party to this thread alone. We will remove low effort comments elsewhere!Real-time chat on our official Internet Relay Chat (IRC) #SpaceX on SnoonetPlease post small launch updates, discussions, and questions here, rather than as a separate post. Thanks!Wanna talk about other SpaceX stuff in a more relaxed atmosphere? Head over to r/SpaceXLounge
Submitted April 15, 2021 at 09:56PM by ElongatedMuskrat
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YouTube
NASA Live: Official Stream of NASA TV
UPDATE: Our 24/7 NASA TV broadcast is being phased out as of Aug. 28, 2024. We *will continue* to stream live events and share new videos on our YouTube account—please subscribe to our channel to make sure you get the latest updates!
We'll also continue…
We'll also continue…
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NASA delays starting contract with SpaceX for Gateway cargo services
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Submitted April 16, 2021 at 06:42AM by spacerfirstclass
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Submitted April 16, 2021 at 06:42AM by spacerfirstclass
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SpaceNews
NASA delays starting contract with SpaceX for Gateway cargo services
More than a year after selecting SpaceX to deliver cargo to the lunar Gateway, NASA has yet to formally start that contract as it performs a broader review.
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New info about Starlink/Starship from Gwynne's April 14 MIT talk
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Submitted April 16, 2021 at 06:15AM by spacerfirstclass
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Submitted April 16, 2021 at 06:15AM by spacerfirstclass
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SpaceNews
SpaceX adds to latest funding round
SpaceX has added more than $300 million to a fundraising round announced earlier this year to support continued work on Starship and Starlink.
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Official: SpaceX's Starship is the only vehicle selected to move forward as the Human Landing System for NASA's Artemis program, beating out Blue Origin and Dynetics.
Starship will attempt to land the first humans on the Moon since 1972.
By: @Michael Baylor
Starship will attempt to land the first humans on the Moon since 1972.
By: @Michael Baylor
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SpaceX Starship Wins!! (As everyone already knew by now. But that's the official announcement).
#WenMoonLanding!
By: @Chris B - NSF
#WenMoonLanding!
By: @Chris B - NSF
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Forwarded from EverythingScience
NASA
As Artemis Moves Forward, NASA Picks SpaceX to Land Next Americans on Moon
NASA is getting ready to send astronauts to explore more of the Moon as part of the Artemis program, and the agency has selected SpaceX to continue development of the first commercial human lander that will safely carry the next two American astronauts to…
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HLS source selection statement
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Submitted April 16, 2021 at 11:38PM by cohberg
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Submitted April 16, 2021 at 11:38PM by cohberg
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Is SpaceX Really Worth $74 Billion?
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Submitted April 16, 2021 at 06:23PM by JakedHavoc
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Submitted April 16, 2021 at 06:23PM by JakedHavoc
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Forbes
Is SpaceX Really Worth $74 Billion?
Elon Musk’s privately held rocket company SpaceX raised around $1.16 billion via equity funding over the last two months per SEC filings, with the company now reportedly being valued at $74 billion. This compares to a previous valuation of $46 billion based…
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SpaceX on Twitter: Static fire test of Falcon 9 complete – targeting Thursday, April 22 at 6:11 a.m. EDT for launch of Dragon’s second operational mission to the space station
https://twitter.com/SpaceX/status/1383375176985759747
Submitted April 17, 2021 at 01:25PM by hitura-nobad
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https://twitter.com/SpaceX/status/1383375176985759747
Submitted April 17, 2021 at 01:25PM by hitura-nobad
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Twitter
SpaceX
Static fire test of Falcon 9 complete – targeting Thursday, April 22 at 6:11 a.m. EDT for launch of Dragon’s second operational mission to the @space_station spacex.com/launches
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Starbase Production Diagram - 18th April 2021 https://t.co/WUvNVbSls6
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Submitted April 18, 2021 at 02:31AM by brendan290803
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Submitted April 18, 2021 at 02:31AM by brendan290803
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Twitter
Brendan
Starbase Production Diagram - 18th April 2021
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SpaceX on Twitter: SpaceX and NASA completed a full rehearsal of launch day activities with the four Crew-2 astronauts
https://twitter.com/SpaceX/status/1383772720500903942
Submitted April 18, 2021 at 03:27PM by Exatrynzir
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https://twitter.com/SpaceX/status/1383772720500903942
Submitted April 18, 2021 at 03:27PM by Exatrynzir
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Twitter
SpaceX
SpaceX and @NASA completed a full rehearsal of launch day activities with the four Crew-2 astronauts
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Forwarded from EverythingScience
NASA’s Ingenuity Mars Helicopter became the first aircraft in history to make a powered, controlled flight on another planet.
Ingenuity took this shot of its shadow while hovering over the Martian surface. It used its navigation camera, which autonomously tracks the ground during flight.
The Ingenuity team at the agency’s Jet Propulsion Laboratory in Southern California confirmed the flight succeeded after receiving data from the helicopter via NASA’s Perseverance Mars rover at 10:46 a.m. UTC
“Ingenuity is the latest in a long and storied tradition of NASA projects achieving a space exploration goal once thought impossible,” said acting NASA Administrator Steve Jurczyk. “The X-15 was a pathfinder for the space shuttle. Mars Pathfinder and its Sojourner rover did the same for three generations of Mars rovers. We don’t know exactly where Ingenuity will lead us, but today’s results indicate the sky – at least on Mars – may not be the limit.”
Early video of flight
Read more | #Mars2020
@EverythingScience
Ingenuity took this shot of its shadow while hovering over the Martian surface. It used its navigation camera, which autonomously tracks the ground during flight.
The Ingenuity team at the agency’s Jet Propulsion Laboratory in Southern California confirmed the flight succeeded after receiving data from the helicopter via NASA’s Perseverance Mars rover at 10:46 a.m. UTC
“Ingenuity is the latest in a long and storied tradition of NASA projects achieving a space exploration goal once thought impossible,” said acting NASA Administrator Steve Jurczyk. “The X-15 was a pathfinder for the space shuttle. Mars Pathfinder and its Sojourner rover did the same for three generations of Mars rovers. We don’t know exactly where Ingenuity will lead us, but today’s results indicate the sky – at least on Mars – may not be the limit.”
Early video of flight
Read more | #Mars2020
@EverythingScience
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Forwarded from EverythingScience
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First Video of NASA's Ingenuity Mars Helicopter in Flight
In this video captured by NASA’s Perseverance rover, the agency's Ingenuity Mars Helicopter took the first powered, controlled flight on another planet
Stitched together from multiple images, the mosaic is not white balanced; instead, it is displayed in a preliminary calibrated version of a natural-color composite, approximately simulating the colors of the scene as it would appear on Mars
The solar-powered helicopter first became airborne at 7:34 a.m UTC – 12:33 Local Mean Solar Time (Mars time) – a time the Ingenuity team determined would have optimal energy and flight conditions. Altimeter data indicate Ingenuity climbed to its prescribed maximum altitude of 3 meters and maintained a stable hover for 30 seconds. It then descended, touching back down on the surface of Mars after logging a total of 39.1 seconds of flight.
Video | #Mars2020
@EverythingScience
In this video captured by NASA’s Perseverance rover, the agency's Ingenuity Mars Helicopter took the first powered, controlled flight on another planet
Stitched together from multiple images, the mosaic is not white balanced; instead, it is displayed in a preliminary calibrated version of a natural-color composite, approximately simulating the colors of the scene as it would appear on Mars
The solar-powered helicopter first became airborne at 7:34 a.m UTC – 12:33 Local Mean Solar Time (Mars time) – a time the Ingenuity team determined would have optimal energy and flight conditions. Altimeter data indicate Ingenuity climbed to its prescribed maximum altitude of 3 meters and maintained a stable hover for 30 seconds. It then descended, touching back down on the surface of Mars after logging a total of 39.1 seconds of flight.
Video | #Mars2020
@EverythingScience
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SpaceX Booster Reuse: Improvements We’ve Seen
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Submitted April 19, 2021 at 08:23PM by Kyle_M_Photo
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Submitted April 19, 2021 at 08:23PM by Kyle_M_Photo
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Next Horizons Spaceflight
SpaceX Booster Reuse: Improvements We’ve Seen
Since the first Falcon 9 landed successfully, back in December 2015, there has been constant improvement with how they process the landed first stage boosters. Most of this we can’t see, but …
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SpaceX in letter to FCC: no "close call" between a Starlink and a OneWeb satellite last month. Additionally, OneWeb "chose to publicly misstate the circumstances of the coordination" but later offered to "retract" those statements in an FCC meeting.
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Submitted April 21, 2021 at 04:12AM by falsehood
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Submitted April 21, 2021 at 04:12AM by falsehood
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Bill Nelson backs NASA decision on lunar lander in confirmation hearing
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Submitted April 21, 2021 at 07:20PM by skpl
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Ars Technica
Bill Nelson backs NASA decision on lunar lander in confirmation hearing
The hearing was bland, but Nelson's backing of the bidding process was significant.
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Fun and Games with the rocket equation: Or, the dry mass of Lunar Starship must very very low?
An interesting tidbit that might have gotten overlooked in the Lunar Starship excitement. My reading of it says that all orbital refueling is happening in LEO and only in LEO. Lueters, in the selection letter, said that her anxiety about the huge number of launches required was alleviated by the fact that it all happens in LEO (as opposed to near the moon for the other two). Well, that is an interesting datapoint. That tells me that given a dry mass of a ship, an ISP, and a propellant mass, I can tell you how much cargo that ship can land on the moon. Pretty simple Tsiolkovsky equation stuff. So, I did the math.https://imgur.com/a/y5FTRndNote, I also assumed no aerobraking. The ship, minus the cargo has to burn back from the moon and back into LEO. ISP I selected at 350 seconds, and DeltaV from LEO to lunar surface of 7 km/s from this plot: https://sites.google.com/site/exosnews/ula/cislunar-1000 Oberth Effect disregarded.The results are very interesting. There are no solutions that close with a dry mass of 100 tons up to at least a propellant mass of 3600 tons (I didn't calculate further). For a more reasonable estimate of propellant at 1200 tons, no solutions close unless the dry mass of Starship is less than 20 tons!So, what is going on? SX and NASA know how to sling the Tsiolkovsky equation. There is little conceivable way that Lunar Starship masses less than 20 tons. We know the approximate propellant load of a full Starship is in the neighborhood of 1200 tons. We have no reason to think there will be aerobraking (and this would add to the dry mass anyway). The ship has to come back to LEO (that is where it is being refueled! Right out of the mouth of Lueters!). ISRU might be possible, but not early on.A 100 ton ship with a 100 ton cargo just won't close. Like, not even close. So, what am I missing?Code (scientist grade MATLAB) available on request
Submitted April 20, 2021 at 11:06PM by SyntheticAperture
via reddit https://ift.tt/3ekOw6u
An interesting tidbit that might have gotten overlooked in the Lunar Starship excitement. My reading of it says that all orbital refueling is happening in LEO and only in LEO. Lueters, in the selection letter, said that her anxiety about the huge number of launches required was alleviated by the fact that it all happens in LEO (as opposed to near the moon for the other two). Well, that is an interesting datapoint. That tells me that given a dry mass of a ship, an ISP, and a propellant mass, I can tell you how much cargo that ship can land on the moon. Pretty simple Tsiolkovsky equation stuff. So, I did the math.https://imgur.com/a/y5FTRndNote, I also assumed no aerobraking. The ship, minus the cargo has to burn back from the moon and back into LEO. ISP I selected at 350 seconds, and DeltaV from LEO to lunar surface of 7 km/s from this plot: https://sites.google.com/site/exosnews/ula/cislunar-1000 Oberth Effect disregarded.The results are very interesting. There are no solutions that close with a dry mass of 100 tons up to at least a propellant mass of 3600 tons (I didn't calculate further). For a more reasonable estimate of propellant at 1200 tons, no solutions close unless the dry mass of Starship is less than 20 tons!So, what is going on? SX and NASA know how to sling the Tsiolkovsky equation. There is little conceivable way that Lunar Starship masses less than 20 tons. We know the approximate propellant load of a full Starship is in the neighborhood of 1200 tons. We have no reason to think there will be aerobraking (and this would add to the dry mass anyway). The ship has to come back to LEO (that is where it is being refueled! Right out of the mouth of Lueters!). ISRU might be possible, but not early on.A 100 ton ship with a 100 ton cargo just won't close. Like, not even close. So, what am I missing?Code (scientist grade MATLAB) available on request
Submitted April 20, 2021 at 11:06PM by SyntheticAperture
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Imgur
Post with 585 views.
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VICE News interview with Jared Isaacman about the Inspiration4 mission, the future of space travel, and Crew Dragon
https://youtu.be/yANw40QhCSw
Submitted April 21, 2021 at 10:15PM by CaptainBrant
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https://youtu.be/yANw40QhCSw
Submitted April 21, 2021 at 10:15PM by CaptainBrant
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YouTube
This Billionaire Is Paying Elon Musk to Send Him to Space
Jared Isaacman is the billionaire founder of Shift4 Payments, and recently got SpaceX to sell him a personal mission to outer space. This first all-civilian mission is scheduled for late 2021, and will see Isaacman and three other crew members launch on a…
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US military (USSOCOM) wants SpaceX to create a miniature, battery-powered Starlink dish
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Submitted April 22, 2021 at 09:14AM by CProphet
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Submitted April 22, 2021 at 09:14AM by CProphet
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TESLARATI
US military wants SpaceX to create a miniature, battery-powered Starlink dish
The US Department of Defense wants to find out if SpaceX can make a miniature, wireless version of the antennas currently used to connect to Starlink satellite internet. The US Special Operations Command (USSOCOM) announced its interest in miniaturized Starlink…
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Astronauts are about to launch on a used rocket, inside a used spacecraft
This Crew-2 mission is scheduled to launch from Kennedy Space Center at 09:49 UTC on Friday. Weather conditions appear favourable, but if there is an issue SpaceX, has a backup opportunity on Monday at 08:48 UTC
Article | @SpaceX
@EverythingScience
This Crew-2 mission is scheduled to launch from Kennedy Space Center at 09:49 UTC on Friday. Weather conditions appear favourable, but if there is an issue SpaceX, has a backup opportunity on Monday at 08:48 UTC
Article | @SpaceX
@EverythingScience
Ars Technica
Astronauts safely launch into orbit on a used rocket [Updated]
For a few days, 2 Crew Dragons will be docked to the space station.
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