

A SpaceX Falcon 9 rocket, carrying the Dragon CRS-7 mission to resupply the International Space Station (ISS), broke upย 2 minutes and 19 seconds after its liftoff from the Kennedy Space Center on Sunday.ย The cause of the launchย failureย is not yet known with certainty, but its impactย is very clear, especially on students who had experiments onboard.
There was an overpressure event in the upper stage liquid oxygen tank. Data suggests counterintuitive cause.
— Elon Musk (@elonmusk) June 28, 2015
This is the third resupply mission to the ISS lost within the last year, and not the first with student projects aboard.
Earlier this year,ย 18 student experimentsย from the Student Spaceflight Experiments Program (SSEP)ย Mission 6 were lost in an Antares rocket explosion during its launch fromย Wallops Island, Virginia. The Antares, and the Cygnus spacecraft it carried, were built by OrbitalATK, SpaceX’s competitor forย resupply of the ISS.
[youtubeย https://www.youtube.com/watch?v=fTom8xVzFdo]Seventeen of those experimentsย have already been successfully re-flown, on SpaceX’s CRS-5 Dragon flight in December last year. Only one, which belonged to the students fromย Palmetto Scholars Academyย inย North Charleston, South Carolina, was on CRS-7. This team has now uniquely lostย itsย experiment twice.
During the press conference followingย the CRS-7 launch failure, Mike Suffredini, the International Space Station Program Manager at NASA, was asked aboutย hisย reaction to those students, who had experiments destroyed in the Antares launch failure, then rebuilt them, and then hadย them destroyed again in the CRS-7 failure.
“โฆitโs really what you do after you have had to face adversity that really defines what youโre going to be able to do, and I think thatโs a really important lesson for these kids. So, we will help them get back online. Well will help them in getting their hardware built again and get to orbit and do their experiments and hopefully, this will be a positive lesson. But itโs a big impact and itโs hard on them, I know, โcause itโs hard on me.” โย Mike Suffredini, International Space Station Program Manager, NASA
The Palmetto students’ experiment was to investigate how spaceflight and micro-gravity affects theย formation of tin whiskers in lead-free solder. It consisted of a piece of the Space Shuttle Endeavour, which had flown on many previous missions. The piece was donated to the team by scientists at NASA’s ย Goddard Space Flight Center, to replace the original experimental sample lost at Wallops. The piece was significant since it had already developed the tin whiskers the student team wanted to study.
The 24 other experimentsย that formed part of the SSEP Mission 7 launched on CRS-7, that wereย destroyed Sunday,ย will hopefully be reflown by NanoRacksย as rapidly as the experiments lost last yearย at Wallops.
However theย SSEP payloads weren’t the only student projectsย onย CRS-7. Also onboard were the CASIS sponsoredย National Design Challengeย payloads with experiments from two Houston and three Denver schools, investigating topics from vermicomposting in a closed system, to the viability of algal hydrogen production.
Other losses include 8 PlanetLabs ‘Dove’ spacecraft, to add to the 26ย spacecraft they lostย last year in the Wallops explosion.
The most significant loss in Sunday’s launch failure, at least the one most talked about by the media, is the International Docking Adaptor (IDA-1) which was designed to make it possible for commercial crew vehicles being developed by SpaceX and Boeing to dock to the space station.
Andย for those of you that might beย wondering, the Astro Pi heading to the ISSย wasn’t onboard Dragon on Sunday. While originally scheduled for CRS-7, the Pi mayย now be travelling to orbit alongside astronaut Tim Peake onboard hisย Soyuz capsule in July.
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