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{{Short description|Failed 2015 American resupply spaceflight to the ISS}}
{{redirect|CRS-7|the Orbital ATK CRS-7
{{Use American English|date=March 2014}}
{{Use mdy dates|date=April 2018}}
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| image = SpaceX CRS-7 launch failure.jpg
| image_caption = Disintegration of the SpaceX CRS-7 launch vehicle approximately two minutes after liftoff as seen from a NASA tracking camera.
| insignia_caption = NASA SpX-7 mission patch▼
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| mission_duration =
▲| mission_duration = Planned: 1 month <br /> Final: {{time interval|28 June 2015 14:21:11|28 June 2015, 14:23:30|show=hms|sep=,}}
| spacecraft = {{ComV|Dragon
| spacecraft_type = [[SpaceX
| manufacturer =
|
| launch_date = {{start-date|
| launch_rocket = [[Falcon 9
| launch_site = [[Cape Canaveral
| launch_contractor =
| disposal_type = Destroyed on launch
| destroyed = {{end-date|
| orbit_reference = [[geocentric orbit|Geocentric]]
| orbit_regime = [[Low Earth orbit|Low Earth]]
| orbit_inclination = 51.6°
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▲| insignia_caption = NASA SpX-7 mission patch
| programme = '''[[Commercial Resupply Services]]'''
| previous_mission = [[SpaceX CRS-6]]
| next_mission = [[Cygnus
| programme2 = '''[[SpaceX Dragon 1#List of missions|Cargo Dragon]]'''
| previous_mission2 = [[SpaceX CRS-6]]
| next_mission2 = [[SpaceX CRS-8]]
}}
'''SpaceX CRS-7''', also known as '''SpX-7''',<ref>{{cite news |url=http://www.spacepolicyonline.com/news/pressurization-event-in-second-stage-likely-cause-of-spacex-crs-7-failure |title=Pressurization Event in Second Stage Likely Cause of SpaceX CRS-7 Failure |work=Space Policy Online |first=Marcia S. |last=Smith |date=June 28, 2015 |
==Launch history==
[[File:Falcon 9 carrying CRS-7 Dragon on SLC-40 pad (19045370790).jpg|thumb|left|upright|SpaceX CRS-7 prior to launch]]
In January 2015, the launch was tentatively scheduled by NASA for no earlier than June 13, 2015. This was adjusted to June 22, 2015, then moved forward to June 19, 2015, and adjusted again to June 26, 2015.<ref>{{cite web |title=Worldwide Launch Schedule |url=http://www.spaceflightnow.com/tracking/index.html |website=SpaceflightNow |
===Launch failure===
[[File:SpaceX Falcon 9 Rocket Explodes During CRS-7 Launch (Explosion).webm|thumb|left|Video of disintegration and explosion of rocket]]
Performance was nominal until 139 seconds into launch when a cloud of white vapor appeared, followed by a rapid loss of pressure in the liquid oxygen tank of the Falcon 9's second stage. The booster continued on its trajectory until the vehicle completely broke up several seconds later. The Dragon CRS-7 capsule was ejected from the exploding launch vehicle and continued transmitting data until it impacted with the ocean. SpaceX officials stated that it could have been recovered if the parachutes had deployed, but the software in the capsule did not include any provisions for parachute deployment in this situation.<ref name=nsf-20150727>{{cite news |url=https://www.nasaspaceflight.com/2015/07/saving-spaceship-dragon-contingency-chute/ |title=Saving Spaceship Dragon – Software to provide contingency chute deploy |work=[[NASASpaceFlight.com]] |first=Chris |last=Bergin |date=July 27, 2015 |access-date=April 6, 2018}}</ref> It is assumed that the capsule crumpled and broke up on impact. Subsequent investigation traced the accident to the failure of a [[strut]]
An independent investigation by NASA concluded that the most probable cause of the strut failure was a design error: instead of using a stainless
==Payload==
===Primary payload===
NASA contracted with SpaceX for the CRS-7 mission
{{As of|2013|07}}, the first [[International Docking Adapter]], ''IDA-1'', was scheduled
This adapter would have been attached to one of the
====Detailed payload manifest====
A full listing of the cargo aboard the failed mission included
* A Gorilla Suit<ref> {{cite news |url=https://people.com/human-interest/astronaut-scott-kelly-reveals-real-story-behind-viral-video-gorilla-suit-aboard-space-station/|title=Astronaut Scott Kelly Reveals Real Story Behind Video of Him in Gorilla Suit Aboard Space Station |work=People Magazine|first=Diane |last= Herbst |date=January 17, 2022 |access-date=May 12, 2024}}</ref>
▲A full listing of the cargo aboard the failed mission included the following items:<ref>{{cite news |url=http://spaceflightnow.com/2015/06/29/spacex-failure-adds-another-kink-in-station-supply-chain/ |title=SpaceX failure adds another kink in station supply chain |work=Spaceflight Now |first=Stephen |last=Clark |date=June 29, 2015 |accessdate=April 28, 2016}}</ref>
* Crew Supplies — {{convert|690|kg}}
**92 Food [[space food|Bulk Overwrap Bag]]s, 2 Bonus Food Kits, 2 Fresh Food
**Crew Provisions, Crew Care, Operations data file
* Utilization — {{convert|573|kg }}
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** [[Japan Aerospace Exploration Agency]]: Atomization, Biological Rhythms, Multi-omics, Cell Mechanosensing 3, Plant Gravity Sensing 3, SAIBO L&M, Space Pup, Stem Cells, MSPR LM, Group Combustion Camera
** [[NASA|US]]: 2 Polars, 6 DCBs and Ice Bricks, 1 MERLIN, FCF/HRF Resupply, HRP Resupply [Kits, MCT, Microbiome, Twin Studies], [[IMAX Camera]], Meteor, Micro-9, MSG Resupply, NanoRacks Modules & 0.5 NRCSD #7, Universal Battery Charger, Veg-03, Microbial Observatory-1, Microchannel Diffusion Experiment, Wetlab RNA Smartcycler, SCK, Story Time, MELFI TDR Batteries
*Computer
**Projector
*Vehicle
**CHECS CMS: HRM Watches, Bench Lock Studs, Glenn Harness for Kelly, Kopra and Peake
**CHECS EHS: {{CO2}} Monitoring Assemblies, Filter Assemblies, CSA-CP/CDM Battery Assemblies, SIECE Cartridge Assemblies, Water Kit, Petri Dish Packets
**CHECS HMS: IMAKs, Oral Med Packs
**C&T: C2V2 Communications Unit (and HTV-5 Unit Data Converter)
**[[ISS ECLSS|ECLSS]]: 3 Pretreat Tanks, Filter Inserts, 9 KTOs, UPA FCPA, CDRS ASV, IMV Valve, Wring Collector, Water Sampling Kits, OGS ACTEX Filter, ARFTA Brine Filter Assemblies, {{chem2|O2}}/{{chem2|N2}} Pressure Sensor, NORS {{chem2|O2}} Tank, **3 PBA Assemblies, 2 MF Beds, 2 Urine Receptacles, Toilet Paper Packages,
**[[Electrical system of the International Space Station|EPS]]: 2 Avionics Restart Cables
**[[Makita]] Drill, PWD Filter, N3 Bulkhead Connectors, Yellow/Red Adapters, IWIS Plates, 6.0 & 4.0 Waste Xfer Bags, BEAM Ground Straps, JEM Stowage Wire Kit
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The mission would have transported more than {{convert|4000|lb|kg}} of supplies and experiments to the International Space Station including the [[Meteor Composition Determination]] investigation which would have observed [[Meteoroid#Meteor|meteors]] entering the Earth's atmosphere by taking high resolution photos and videos. The [[Center for the Advancement of Science in Space]] had arranged for it to carry more than 30 student research projects to the station including experiments dealing with [[pollination]] in [[Micro-g environment|microgravity]] as well as an experiment to evaluate a [[sunlight]] blocking form of plastic.<ref name=resupplybarge />
CRS-7 would have brought a pair of modified [[Windows Holographic#Microsoft HoloLens|Microsoft HoloLenses]] to the International Space Station as part of [[Project Sidekick]]<!--Intentional redlink, article should be created -->.<ref>{{cite news |last1=Alfano |first1=Andrea |title=HoloLens Is Going To Space As Sidekick In A Joint Project By NASA And Microsoft |url=http://www.techtimes.com/articles/63754/20150625/hololens-going-space-sidekick-joint-project-nasa-microsoft.htm |
==Planned post-launch flight test==
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{{main|SpaceX reusable launch system development program}}
After the second stage [[separation event|separation]], SpaceX planned to conduct a [[flight test]] and [[Falcon 9 ocean booster landing tests|attempt to return]] the Falcon 9's nearly
{{cite news |last1=Gebhardt |first1=Chris |last2=Bergin |first2=Chris |title=World launch markets look toward rocket reusability |url=http://www.nasaspaceflight.com/2015/06/world-launch-markets-rocket-reusability/ |
This would have been SpaceX's third attempt to land the booster on a floating platform after earlier tests in [[Falcon 9 Flight
{{cite news |last1=Bergin |first1=Chris |title=SpaceX preparing for a busy season of missions and test milestones |url=http://www.nasaspaceflight.com/2015/04/spacex-preparing-busy-season-missions-test-milestones/ |
{{cite news |last1=Graham |first1=William |title=SpaceX Falcon 9 scrubs CRS-6 Dragon launch due to weather |url=http://www.nasaspaceflight.com/2015/04/spacex-falcon-9-crs-6-dragon-stage-return/ |
==See also==
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{{Dragon spaceflights}}
{{Falcon rocket launches}}
{{
{{Orbital launches in 2015}}
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[[Category:SpaceX payloads contracted by NASA]]
[[Category:Supply vehicles for the International Space Station]]
[[Category:Rocket launches in 2015]]
[[Category:Space accidents and incidents in the United States]]
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