Recent comments in /f/space
ShingusDMV t1_jdqmut0 wrote
Reply to comment by Border999 in My camera setup on the International Space station. More details in comments. by astro_pettit
Voice activated.
"Hey, Google. Take a photo of that thingy way over there in the distance."
No-Zucchini2787 t1_jdqmri3 wrote
Reply to comment by AGARAN24 in Can I look into the past? by AGARAN24
Technically yes. That's what we are trying with jwst. Not the end of space but first galaxies and stars. Made of pure hydrogen. Right after dark ages.
[deleted] t1_jdqmi09 wrote
Reply to Can I look into the past? by AGARAN24
[deleted]
LunaticBZ t1_jdqlzfr wrote
Reply to comment by [deleted] in Can I look into the past? by AGARAN24
I'm not knowledgeable enough on this subject to have an informed opinion. But couldn't quantum entanglement allow one to technically transmit information instantly?
I say technically since you'd need to physically transport one part of the pair. So you couldn't break causality with it.
AGARAN24 OP t1_jdqlucd wrote
Reply to comment by colinsfordtoolbumb in Can I look into the past? by AGARAN24
Ye thats it. Was just crazy to think of this possibility where you can get pics of dinosaurs. In more thought, it just seems like common sense. Whatever stars you see are probably dead.
colinsfordtoolbumb t1_jdqlkrb wrote
Reply to Can I look into the past? by AGARAN24
I think a better a way to frame this to avoid getting hung up on the quantum mechanic thing is asking if a theoretical astronomer on a distant planet viewed the earth and could see its surface, what would they see. (Ignoring the kind of telescope you would need to even do that but this is theoretical fun so whatever!) If they were 100 light years away, would they be looking at earth 100 years ago.
I think your question is more about, that than anything else? Could be wrong.
AGARAN24 OP t1_jdqlk6v wrote
Reply to comment by scartissue232 in Can I look into the past? by AGARAN24
Hmm. So in future ,if we somehow make this all possible, we could technically get photos of dinosaurs too.
Or in the far ahead future with zillion x zoom camera, we can get into a wormhole far away from earth, take a pic of earth and see how pyramids were made. Haha crazy stuff.
farox t1_jdqlhok wrote
Reply to comment by scartissue232 in Can I look into the past? by AGARAN24
Even without a telescope. Light always takes time to travel. So when you look at your hand and go "Woah"... That hand you see is in the past.
AGARAN24 OP t1_jdqlda7 wrote
Reply to comment by jpo234 in Can I look into the past? by AGARAN24
I read an article long back, regarding quantum entanglement, where scientists have used it to transfer data instantly and hypothesized it can be developed to transfer more data between edges of space instantly. I am no scientist, this is just what I read online which led me to this thought.
AGARAN24 OP t1_jdqlbm0 wrote
Reply to comment by [deleted] in Can I look into the past? by AGARAN24
I read an article long back, regarding quantum entanglement, where scientists have used it to transfer data instantly and hypothesized it can be developed to transfer more data between edges of space instantly. I am no scientist, this is just what I read online which led me to this thought.
AGARAN24 OP t1_jdql40u wrote
Reply to comment by No-Zucchini2787 in Can I look into the past? by AGARAN24
Exactly, so technically we can see the end and beginning of space with the right equipment?
bluenoser613 t1_jdql1ie wrote
Reply to comment by ZealousidealClub4119 in My camera setup on the International Space station. More details in comments. by astro_pettit
No not at all. Most don't think about this. Even diving 10m in the water is 2x more pressure than this. Someone going to the bottom of the ocean is way harder for the vehicle to withstand.
[deleted] t1_jdqkv7e wrote
Interesting-Piece483 t1_jdqkgar wrote
Reply to comment by WhileNotLurking in Black holes may be swallowing invisible matter that slows the movement of stars by Maxcactus
I am not an expert, this is just my opinion. I agree, I think it's a lack of understanding of the interstellar medium. Currently, we have observed portions of deep state can vary in density between 0.0001 ions per cubic centimeter to a million ions per cubic centimeter, but this would be very hard to measure. If the average is on the higher end of the range, or higher than expected, we could vastly miscalculate the expected weight of normal matter given the sheer size of "empty" space. Furthermore abundance of heavy elements in the solar system point to a supernova event in our vicinity in the past which may have locally emptied/blasted away the particles around us, what if real space is less of a vacuum than we think and there is the missing mass.
[deleted] t1_jdqk8sj wrote
Reply to comment by Border999 in My camera setup on the International Space station. More details in comments. by astro_pettit
[removed]
scartissue232 t1_jdqk7h3 wrote
Reply to Can I look into the past? by AGARAN24
Whatever you see through a telescope it’s in the past. You can only look into the past.
No-Zucchini2787 t1_jdqk4jb wrote
Reply to Can I look into the past? by AGARAN24
You are looking at the past when you see sky. Always. Anyone on proxima Centauri will see earth as if was 4.5 light years ago. Betelgeuse might have already exploded. We are Andromeda as it was 4.5 millions year ago. Today Someone far away can see earth as dinosaurs are roaming. Time is relative.
Different-Stop8410 t1_jdqk389 wrote
Reply to comment by htomserveaux in My camera setup on the International Space station. More details in comments. by astro_pettit
No that’s why they spend 10billion on pencils!!🤣🤣🤣🇬🇧
[deleted] t1_jdqk0t5 wrote
Reply to Can I look into the past? by AGARAN24
[deleted]
jpo234 t1_jdqjyr2 wrote
Reply to Can I look into the past? by AGARAN24
Since you are inventing your own laws of physics (It transmits everything instantly through some quantum concept), you can do whatever you want.
goatasaurusrex t1_jdqjkcq wrote
Reply to comment by Such-Echo6002 in Black holes may be swallowing invisible matter that slows the movement of stars by Maxcactus
There are two recent papers (from the same authors I believe) trying to do this. There's quite a bit of skepticism though, as they appear to have cherry picked data to fit. But it is something astrophysics is trying to figure out. They don't like it either.
[deleted] t1_jdqjezd wrote
Reply to comment by Border999 in My camera setup on the International Space station. More details in comments. by astro_pettit
[removed]
221missile t1_jdqj5yg wrote
Reply to comment by collegefurtrader in Latest video of the Ingenuity Mars Helicopter kicking up dust and taking off for Flight #47. Ingenuity is well beyond its warranty at this point. The video was captured by the Mastcam-Z imager aboard NASA’s Perseverance rover on March 9, 2023. by ICumCoffee
It’s more expensive per pound than the B-2 spirit, an aircraft that literally costs more than its weight in gold.
ArmPitJuice69 t1_jdqj4hj wrote
Reply to My camera setup on the International Space station. More details in comments. by astro_pettit
Without context, I would assume this to be the making of the music video “Dare” by The Gorillaz.
[deleted] t1_jdqmuuh wrote
Reply to comment by censored_username in [NASA on Twitter] Newly-discovered asteroid 2023 DZ2 will pass Earth more than 100,000 miles (161,000 km) away–about half the distance to the Moon–making its close approach at 3:51 p.m. EDT (12:51 p.m. PDT) by ICumCoffee
[removed]