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A comment on NASA’s longshot bet on a revolutionary rocket may be about to pay off. Parent comment

Re:NASA’s longshot bet on a revolutionary rocket may be abou... by randallsquared on Wednesday February 22, 2017 @01:02PM (#13707551)
In space, probably by shade.
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Re:NASA’s longshot bet on a revolutionary rocket may be abou... by NoGravitas on Wednesday February 22, 2017 @02:42PM (#13708535)
Isn't it extremely hard to dump waste heat in a vacuum?
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Re:NASA’s longshot bet on a revolutionary rocket may be abou... by netinstructions on Wednesday February 22, 2017 @03:06PM (#13708711)
I don't know how hard it is, but the ISS uses big radiators to dump excess heat into space.

> The Station's outstretched radiators are made of honeycomb aluminum panels. There are 14 panels, each measuring 6 by 10 feet (1.8 by 3 meters), for a total of 1680 square feet (156 square meters) of ammonia-tubing-filled heat exchange area.

More info at https://science.nasa.gov/science-news/science-at-nasa/2001/a...

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Re:NASA’s longshot bet on a revolutionary rocket may be abou... by dragonwriter on Wednesday February 22, 2017 @03:12PM (#13708756)
There's hard theoretical limits on the rate at which you radiate heat, so without contact with an external medium or dumping mass, you're pretty much stuck with limits based on how big your radiators are
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