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Washington Post: Boeing faced only ‘limited’ safety review from NASA while SpaceX got a full examination
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Submitted November 18, 2019 at 10:03PM by rustybeancake
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Gwynne Shotwell: "We're aiming to be able to drop Starship on the lunar surface by 2022."
https://twitter.com/SciGuySpace/status/1196548410733666308?s=19

Submitted November 19, 2019 at 03:10AM by shaldag_x
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[Slo-mo video] Last week, @SpaceX completed a series of static fire engine tests of the #CrewDragon spacecraft. The tests will help validate the launch escape system for the in-flight abort demonstration planned as part of @NASA's Commercial Crew Program
https://twitter.com/Commercial_Crew/status/1197173732034396160

Submitted November 20, 2019 at 04:35PM by PhysicsBus
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SpaceX cheap rideshare flights change propulsion equation - SpaceNews.com
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Submitted November 20, 2019 at 04:16PM by Jeramiah_Johnson
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How Realistic are the "Fixes" Recommended in this Article about Starlink Damaging Astronomy?
This article seems way biased to me, but this topic (usually with angry bias) seems to be making into the mainstream news more and more. How realistic are the 4 "fixes" mentioned in this article?https://www.forbes.com/sites/startswithabang/2019/11/20/this-is-how-elon-musk-can-fix-the-damage-his-starlink-satellites-are-causing-to-astronomy/#7eb1ee54ccce1.) De-orbit the current batch of Starlink satellites, and place a moratorium on the launch of new ones until the proper modifications have been made.2.) Either redesign or coat the satellites to significantly reduce their reflectivity.3.) Provide real-time trajectory plans, predictions, and adjustment information for each satellite to observatories worldwide.4.) Provide funding to assist astronomers in the development of hardware and software-driven solutions to subtracting out as much of the satellite pollution as possible.It seems to me like only 2 and 3 are actually realistic.

Submitted November 20, 2019 at 06:00PM by jmpreiks
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Zubrin AMA - Sat Nov 23 12:00PST / 20:00UTC
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Submitted November 21, 2019 at 06:14AM by ElongatedMuskrat
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Michael Sheetz on Twitter: SpaceX statement on the above test and incident
https://twitter.com/thesheetztweetz/status/1197306617760559104

Submitted November 21, 2019 at 03:42AM by Fizrock
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I'm Robert Zubrin, AMA noon Pacific today
Hi, I'm Dr. Robert Zubrin. I'll be doing an AMA at noon Pacific today.See you then!

Submitted November 23, 2019 at 06:13PM by DrRobertZubrin
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<b>CRS-19 Launch Campaign Thread</b>
CRS-19 Launch Infographic by <a href="https://gdbarrett.com/">Geoff Barrett coming soon!<a href="https://www.reddit.com/r/spacex/comments/e0upb3/crs18_launch_campaign_thread/#siteTable_t3_e0upb3">-> Jump to Comments <-SpaceX's 19th Commercial Resupply Services mission out of a total of 20 such contracted flights for NASA, this launch will deliver essential supplies to the International Space Station using the reusable Dragon 1 cargo spacecraft. The external payload for this mission is Japan's Hyperspectral Imager Suite (HISUI). This mission will launch from SLC-40 at Cape Canaveral AFS on a Falcon 9, with first stage landing prospects currently unknown.This is SpaceX's <strong>12th</strong> mission of 2019, the <strong>3rd and final</strong> CRS flight of the year and the <strong>76th</strong> Falcon 9 launch overall. It will use an unknown Block 5 booster, and re-use an unknown previously flown Dragon 1 spacecraft.<strong>Liftoff currently scheduled for</strong><strong>NET 17:48 UTC / 12:48 PM EST December 4 2019</strong> (instantaneous window)Backup launch window*<em>≈17:24 UTC / ≈12:24 PM EST December 5 2019</em> ; instantaneous window gets 20-25 minutes earlier each day to match ISS orbitStatic fire scheduled forUnknownVehicle component locations<em>First stage</em>: Unknown <em>Second stage</em>: Unknown <em>Dragon</em>: UnknownPayloadCommercial Resupply Services-19 supplies, equipment and experiments and <a href="https://eoportal.org/web/eoportal/satellite-missions/content/-/article/iss-utilization-hisui-hyperspectral-imager-suite-">HISUIPayload launch mass4200 kg (Dragon) + 1290 kg (fuel) + 2000 kg payload mass = ≈7500 kg launch mass?ISS payload mass500 kg (HSUI) + ≈1500 kg (Internal Cargo) = ≈2000 kg totalDestination orbitISS Low Earth Orbit (≈400 x ≈400 km, 51.66°)Launch vehicleFalcon 9 <a href="https://reddit.com/r/spacex/wiki/launches">(76th launch of F9; 56th launch of F9 Full Thrust; 20th launch of F9 FT Block 5)Core<a href="https://www.reddit.com/r/spacex/wiki/cores#wiki_b10XX">B10??.?Past flights of this coreUnknownSpacecraft typeDragon 1 ({24th} launch of a Dragon spacecraft; {21st} launch of a Dragon 1; {19th operational Dragon 1 launch)Capsule<a href="https://www.reddit.com/r/spacex/wiki/capsules">C1??Past flights of this capsulePresumably 2Launch site<a href="https://www.reddit.com/r/SpaceX/wiki/pads">SLC-40, Cape Canaveral Air Force Station, Florida<strong>Landing</strong><strong>Currently unknown; hazard zones do not suggest a RTLS or offshore ASDS as expected</strong>Landing site:Unknown<strong>Fairing recovery</strong><strong>No fairing (CRS flight)</strong>Mission success criteriaSuccessful separation and deployment of Dragon into the target orbit; berthing to the ISS; unberthing from the ISS; and reentry, splashdown and recovery of Dragon.News and TimelineFuture events from <a href="https://www.nasa.gov/multimedia/nasatv/schedule.html">NASATV schedule.Timestamp (UTC)Event Description2019-12-07Coverage of <strong>Dragon installation to ISS</strong>2019-12-04 17:48<strong>Scheduled liftoff</strong>2019-12-04 17:30NASA TV launch coverage begins2019-11-23Launch campaign thread goes live2019-11-22<a href="https://www.reddit.com/r/spacex/comments/e0dymx/launch_hazard_area_for_crs19/">Launch hazard areas released, seemingly preclude RTLSPayloadsNameTypeOperatorOrbitMassMissionInternal CargoResupplyNASAISS LEO (≈400 x ≈400 km, 51.66°)≈1500 kgDeliver supplies, equipment and experiments to support ISS science and operations.HISUIRemote SensingJapanISS LEO (≈400 x ≈400 km, 51.66°)500 kgHyperspectral remote sensing instrument for resource discovery and management.ELaNa 25B and ELaNa 28CubesatsNASA/VariousLEO (Approx 400 x 400 km, 51.7°)10-20 kgVarious cubesats by a variety of universities and research groups. Will be deployed separately from ISS.Mission-Specific FAQWhat does an instantaneous window mean?Due to needing to synchronize the orbit of the SpaceX Dragon capsule with that…
<b>Starship Development Thread #7</b>
Quick Links<a href="https://pbs.twimg.com/media/EFmGjfCXUAEpGfb.jpg"></a><a href="https://www.reddit.com/r/spacex/comments/e11zs0/starship_development_thread_7/#siteTable_t3_e11zs0">JUMP TO COMMENTS</a> | <a href="https://old.reddit.com/r/spacex/comments/e11zs0/starship_development_thread_7/#siteTable_t3_e11zs0">Alternative Jump To Comments Link</a><a href="https://www.youtube.com/channel/UCDkP5NWUhfHXZNhcGr2G2pQ/live">SPADRE LIVE</a> | <a href="https://www.youtube.com/channel/UCFwMITSkc1Fms6PoJoh1OUQ/live">LABPADRE LIVE</a> | <a href="https://youtu.be/2d8l_0w2VKM">LABPADRE DIRECT</a>OverviewSpaceX is developing <a href="https://youtu.be/C8JyvzU0CXU">Starship</a> at their Starship Assembly Site in Texas, and also at their facilities on Cidco Road in Cocoa, Florida and at Kennedy Space Center. Until mid November, the Starship development teams have been focusing on finishing the Mark 1 and 2 vehicles which were expected to make <a href="https://twitter.com/elonmusk/status/1166860032052539392">suborbital test flights</a>. The Mark 1 testing campaign ended on November 20 with a <a href="https://youtu.be/3nTSubYzQOM">catastrophic failure</a> of the methane tank during pressurized testing. In <a href="https://twitter.com/thesheetztweetz/status/1197306617760559104">a statement from SpaceX</a> after the incident it was announced that the decision had already been made not to fly these vehicles, and that development will now focus on the orbital Mark 3 design.Launch mounts for the Starship prototypes are in the works. Starhopper's Texas launch site <a href="https://twitter.com/austinbarnard45/status/1174819747705368576">was modified</a> to handle Starship Mk.1, and at Kennedy Space Center's LC-39A, a dedicated <a href="https://forum.nasaspaceflight.com/index.php?topic=48720.0">Starship launch platform and landing pad are under construction</a>. SpaceX has not recently indicated what sort of flight test schedule to expect from Mark 3.Starship is powered by SpaceX's <a href="https://twitter.com/SpaceX/status/1178128488697618432">Raptor</a>, a full flow staged combustion cycle methane/oxygen rocket engine. Sub-scale Raptor test firing began in 2016, and full-scale test firing began early 2019 at McGregor, Texas, where there are <a href="https://www.nasaspaceflight.com/2019/10/spacex-renovating-falcon-stand-mcgregor/">two operational test stands, and a third is under construction</a>. Eventually, Starship will have <a href="https://twitter.com/elonmusk/status/1131433322276483072">three sea level Raptors and three vacuum Raptors</a>. Super Heavy may initially use around <a href="https://twitter.com/elonmusk/status/1131625229367693312">20 Raptors</a>, and operational versions could have around 31 to 37 sea level Raptors.Previous Threads:<a href="https://redd.it/am4gxw/">Starhopper Thread</a> #1 (2019-02-01) A dramatic venting watertower<a href="https://redd.it/bi08h9/">Starhopper Thread</a> #2 (2019-04-27) Hops and hiccups - Starships never come alone<a href="https://redd.it/c61lqs/">Starhopper Thread</a> #3 (2019-06-27) RCS and SN6 - 20 meter hopping<a href="https://redd.it/ci70t4/">Starhopper Thread</a> #4 (2019-07-26) 150 meter hop and Mk.1 and Mk.2 protoype growth<a href="https://redd.it/cv8vi4/">Starhopper 150m Hop</a> (2019-08-27) Updates and discussion<a href="https://redd.it/cxyt8x/">Starship Dev Thread</a> #5 (2019-08-31) Mk.1 fins and temporary assembly<a href="https://redd.it/d9l5bm/">Starship Presentation Updates Thread</a> (2019-09-27) Updates and discussion - <a href="https://youtu.be/sOpMrVnjYeY">Webcast</a><a href="http://redd.it/dfd8ik/">Starship Dev Thread</a> #6 (2019-10-09) Mk.1 partial reassembly and bulkhead liberationVehicle UpdatesStarship Mk.2 at Cocoa, Florida — Construction and Updates2019-11-23<a href="https://youtu.be/80tZcbVTKjo">Transport cradles on site</a> (<em>YouTube</em>), unclear if Mk.2 will use them2019-11-18<a href="https://twitter.com/John_Winkopp/status/11964595
NASA administrator Jim Bridenstine on whether SpaceX low-orbit satellites are blocking stargazing
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Submitted November 25, 2019 at 08:54AM by BigFalconRocket
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