Recent comments in /f/space

Polygnom t1_j5w8orp wrote

First of all, I'm an opponent of nuclear power here on earth.

But I'm absolutely for nuclear propulsion in space. These rockets can be made safe, the thing to be concerned about is the waste product. Prior to launch, the fuel can be encased safely as was done with the Apollo RTGs. So even the explosion of a fully fueled rocket on the pad will not be a problem. The engine is then only activated once safely in space.

There is no reason by have any panic reaction just because it has the word nuclear in it.

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SpartanJack17 t1_j5w4dvp wrote

Hello u/Brown_Monkeykr, your submission "Exo planets, what are they?" has been removed from r/space because:

  • Such questions should be asked in the "All space questions" thread stickied at the top of the sub.

Please read the rules in the sidebar and check r/space for duplicate submissions before posting. If you have any questions about this removal please message the r/space moderators. Thank you.

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danielravennest t1_j5w3jq3 wrote

Small world department. I was working for Boeing's space systems division at the time, and we had a two-stage solid rocket in the cargo bay that flight. It was intended to send a NASA communications satellite to high orbit.

People in our division knew the astronauts, because we trained them how to deploy the upper stage with the satellite from the cargo bay. Until they found our rocket intact on the ocean floor, we didn't know if the accident was our fault, because it was 27,000 pounds of rocket fuel. Man that was a tense couple of weeks.

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Merky600 t1_j5w3i5s wrote

IIRC There was a valve they could have closed to stop the depressurization. Catch was, it needed to be turned a large number of times to close. Perhaps they attempted it. Took long time to shut. More time than they had.

Edit: Crap. I was wrong and it was worse than I thought.

"Based on examination of the hatch and valves, officials determined that air leaked from one of the two ventilation/equalization valves, located behind the control panel.•Although the crew would have been immediately aware of the leak, they had to determine its source, so they switched off radio transmitters to isolate the leak’s noise. Crew commander Dobrovolskiy’s body was found apparently attempting to cover the control panel with a checklist.•The crew could not close the valve because it lacked a manual closure mechanism and was inaccessible.•Within 40 seconds of depressurization during descent, the crew suffocated."

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