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4 Questions

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Is there an explanation for repeating Soyuz accidents involving misfiring of explosive bolts?

crewed-spaceflight reentry soyuz-spacecraft failure stage-separation

Jun 7 '19 at 5:34 uhoh 123k

1

9

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2

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2k

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Reasons for using a bi-elliptic transfer for Soyuz-ISS rendezvous

iss orbital-mechanics soyuz-spacecraft hohmann-transfer

Nov 7 '18 at 10:15 astroflash 1

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8

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4

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6k

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Autogenous pressurization with sub-cooled propellant

spacex liquid-fuel cryogenics fuel-system sub-cooled

Feb 28 at 20:42 Val 1,128

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2

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What is this tunnel with white vertical structures on LC-39A?

spacex launchpad

Feb 19 '17 at 21:14 geoffc 73.6k

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