Recent comments in /f/space

codeedog t1_ja3000m wrote

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

There would be no sound in the vacuum of space unless the two ships were next to each other. The gas molecules would dissipate rapidly. The density of the gas ball would fall off at around 1/r^3. The energy of the wave front would normally expand at 1/r^2 in an atmosphere which provides a medium for energy transfer. However, in space and without a gas medium, the “sound” must travel with the gas or other materials from the explosion and they dissipate rapidly (r-cubed) or stay as chunks of broken spaceship.

So, unless a chunk of exploded spaceship hit your ship, you wouldn’t hear any sound.

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ithappenedone234 t1_ja2yyqg wrote

Reply to comment by BlueKnight17c in NASA's Artemis moon program receives salute from Apollo 11's Buzz Aldrin (video) by kevindavis338

When was the last death in spacefaring?

As aircraft had major accidents from incompetent admins, incompetent engineers and institutional hubris, and only got better from lessons learned; the spacecraft have gotten better and survived NASA’s and the Soviet’s incompetent admins, incompetent engineers and institutional hubris.

Most of the deaths are blood on NASA’s hands for preventable reasons and is not a recommendation of them, it’s an indictment. The admins and engineers killed Komarov with their incompetence.

Maybe having spacefaring institutions that are not beholden to political pressures is the safest thing.

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wdd09 OP t1_ja2yych wrote

Reply to Jupiter and the Moon over Florida State University by wdd09

Weather was really crappy, but sometimes mother nature throws you a break! That was the case for me Wednesday evening as I hoped to catch the trifecta of celestial objects in the Moon, Jupiter, and Venus. However, with an expansive stratus deck overhead I was about to give up when I saw a few glimpses of the moon peak out between rare breaks in the stratus. So I went to my planned shooting location and sat, camera ready, waiting for that one break in the clouds. Unfortunately, with how expansive the deck was, it prevented me from capturing all three bodies, but I was able to take advantage of a 7 second break in the clouds to capture this image!

The foreground is a 3 image HDR to capture the large dynamic range of the building. The background containing the Moon and Jupiter was blended in to the HDR foreground. Brought up the lower exposure of the background (which consisted of one of the 3 HDR shots) to match the lighting of the foreground while preserving the highlights in the Moon/Jupiter to not overexpose them.

Sony a7iii, Samyang 85mm f/1.4 lens.

More of my work is on my Instagram:@WrightDobbs

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Alpha433 t1_ja2yoef wrote

Reply to comment by _hic-sunt-dracones_ in Explosions in space movies? by DemonOfTheAstroWaste

In the series, the premise is that an alien. Oalition sends an envoy to earth to help prepare them to sidestep destruction by an extrgalactic extinction event. Part of this is the sharing of advanced technology so you could go from modern day tech to gauss weapons, space navies, and 15' combat robots with human integrated controls. So they probably could easilly bullshit an excuse up for the vacuum.

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