Recent comments in /f/space
LiveComfortable3228 OP t1_jc5r7gt wrote
Reply to comment by RnkG1 in Dust on Mars Rover's solar panels by LiveComfortable3228
NASA might actually buy it for 9M if it extends the rover's lifespan....
LiveComfortable3228 OP t1_jc5r5do wrote
Reply to comment by KetamineAstronaut in Dust on Mars Rover's solar panels by LiveComfortable3228
yeah that makes sense. We're used to "earth dust" which is mostly organic particles. Lunar dust (and I'm guessing Mars dust as well) was super abrasive so "dusting" would really scratch your solar panels.
Another seemingly simple but really complicated space issue!
KetamineAstronaut t1_jc5qa5s wrote
Reply to Dust on Mars Rover's solar panels by LiveComfortable3228
Dr. Becky Smethurst had a good explanation, it's basically weight cost and complexity issues, but the sparknotes version was:
Can't have air compression cause of weight, can't have wipers due to the coarse nature of Mars dust would damage the panels.
RnkG1 t1_jc5q5i2 wrote
Reply to Dust on Mars Rover's solar panels by LiveComfortable3228
Probably because a dust wiper suitable for long term use without fail would actually cost 9 million dollars per.
[deleted] t1_jc55nt4 wrote
Do-not-respond t1_jc557i5 wrote
Reply to Full moon, southern hemisphere shot by EduardoVrd
I am 100% sure I have seen this picture elsewhere. 😡
Rockclimber88 OP t1_jc544ge wrote
Reply to comment by TheNebulaGuy in Pillars of Creation - cropped them differently and rotated to show their "frame" by Rockclimber88
It's a famous photo taken in 1995. I took it from wayback machine because the website they were orignally on was down.
Natiak t1_jc4z3yg wrote
Reply to comment by DaveMcW in Pillars of Creation - cropped them differently and rotated to show their "frame" by Rockclimber88
Does this mean if you were traveling at the speed of light you would exist in a single reference frame?
[deleted] t1_jc4nvkq wrote
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[deleted] t1_jc4gta6 wrote
Reply to comment by BeardyTechie in Waning Gibbous Moon by Eclipse489
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I-melted t1_jc4dbfq wrote
Reply to comment by Bobwindy in The largest NASA Hubble Space Telescope image ever assembled, this sweeping bird’s-eye view of a portion of the Andromeda galaxy. Credit: NASA, ESA by Davicho77
There’s a lovely bit in the Hitchhikers Guide To The Galaxy, in which a character is punished by being put into something called The Total Perspective Vortex. A machine that allows you to glimpse for a moment the real size of the universe, and yourself relative to it. Which drives you completely mad, obviously.
[deleted] t1_jc4clo1 wrote
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Bobwindy t1_jc4bxco wrote
Reply to comment by I-melted in The largest NASA Hubble Space Telescope image ever assembled, this sweeping bird’s-eye view of a portion of the Andromeda galaxy. Credit: NASA, ESA by Davicho77
They can understand it in terms of relative distance and sizes compared with other stellar objects i would imagine, but I think that humans only frame of reference in terms of understanding distance as we would imagine the distance to the next town or city is the size of our own planet, or for a lucky few the distance to the moon. To truly comprehend a distance and size I think you need to have seen a comparable reference first. We talk of light years and distance to other stars, but we have never experienced that distance first hand.
BeardyTechie t1_jc3vzzy wrote
Reply to comment by Eclipse489 in Waning Gibbous Moon by Eclipse489
Nice! Shared to r/moonporn
Which_Professor_7181 t1_jc3tzxq wrote
Reply to The largest NASA Hubble Space Telescope image ever assembled, this sweeping bird’s-eye view of a portion of the Andromeda galaxy. Credit: NASA, ESA by Davicho77
in the past 3 years so much has come to light about Nassau and I don't mean tin foil hat wearing stuff I just mean the way they will airbrush pictures and I just can't trust any images that Nassau I mean I'm interested in seeing the pictures from Mars and everything but I'm very reluctant to see any images from that song believe that I'm looking at exactly the original picture. Nassau it's full of crap
I-melted t1_jc3t4qg wrote
Reply to comment by briggs851 in The largest NASA Hubble Space Telescope image ever assembled, this sweeping bird’s-eye view of a portion of the Andromeda galaxy. Credit: NASA, ESA by Davicho77
I’d love to know I’d really good astrophysicists can actually picture these sizes in their heads, or if it’s beyond human capability.
[deleted] t1_jc3r2z6 wrote
phosphenes t1_jc3qpdy wrote
Reply to comment by Jazzlike-Outcome711 in Milky Way over Uruguayan Lighthouse. Credit: Mauricio Salazar by Davicho77
No, it doesn't look much like this to the naked eye. Even in very dark sky areas, the Milky Way looks a lot fainter than this and the colors are basically invisible. Here's a photographer simulating what it would look like, and that matches my experience.
On the other hand, time lapse night sky photos never do a good job capturing just how many stars there are far from the cities. It's wild, and everyone needs to experience it.
[deleted] t1_jc3qock wrote
Reply to Waning Gibbous Moon by Eclipse489
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nutstobutts t1_jc3q0nt wrote
Reply to comment by typeOnegative77 in Milky Way over Uruguayan Lighthouse. Credit: Mauricio Salazar by Davicho77
The light houe is photographed earlier in the day when it's still a bit light out.
Then the sky is photographed with a motorized mount that moves across the sky (Which would make the lighthouse blurry).
Then photoshop does its magic.
dinowand t1_jc3ohx0 wrote
Reply to comment by original_4degrees in The largest NASA Hubble Space Telescope image ever assembled, this sweeping bird’s-eye view of a portion of the Andromeda galaxy. Credit: NASA, ESA by Davicho77
Doesn't matter... We're in the milky way and it's barely visible. The stars are just too far apart and our eyes are not sensitive enough for us to ever see something like this with the naked eye
briggs851 t1_jc3l7zk wrote
Reply to comment by I-melted in The largest NASA Hubble Space Telescope image ever assembled, this sweeping bird’s-eye view of a portion of the Andromeda galaxy. Credit: NASA, ESA by Davicho77
And the distance between each of them is almost unimaginably vast.
BackItUpWithLinks t1_jc5rtua wrote
Reply to comment by LiveComfortable3228 in Dust on Mars Rover's solar panels by LiveComfortable3228
If you’re talking about curiosity, that’s doubtful. It’s mission was supposed to last about two earth year ms and it’s been 11 years
https://mars.nasa.gov/msl/spacecraft/rover/summary/
So it’s doubtful they would have done anything to extend the mission when it’s already gone beyond expectations be a decade