Recent comments in /f/space

yadavhimanshu961 OP t1_ja3fzmw wrote

Reply to comment by C0NEYISLANDWHITEFISH in Three different meteorites in three days -- Feb 13th France, 14th Italy, 15th Texas. by yadavhimanshu961

It is common way to protect freshly fallen meteorites during recovery and transportation. By wrapping the meteorite in aluminum foil, it helps to insulate it from the environment and protect it from rapid temperature changes. This is especially important for meteorites that have fallen in wet or humid environments, as exposure to moisture can cause them to rust or degrade.

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Alexthelightnerd t1_ja3ezoc wrote

Reply to comment by sam_I_am_knot in Explosions in space movies? by DemonOfTheAstroWaste

Sound will propagate, just not through undisturbed vacuum. Explosions generally create a cloud of rapidly expanding gas, and that would be audible. It would not be as loud or travel as far as an explosion in an atmosphere, but within a certain distance you would hear it. Further, sound propagates very well through metal, and spaceships generally have atmosphere inside them. If something hits the spaceship you're in, you'd hear it. If something explodes close to your ship you'd hear it. You'd also absolutely be able to hear weapons firing, engines operating, and anything else that vibrates on the ship you're currently in. Any engine that creates a pressurized exhaust would be audible from outside as well, though in most cases I'd imagine if one were close enough to hear it they'd be killed by it because of temperature or radiation.

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