Recent comments in /f/space
ajamesmccarthy OP t1_j98sd1x wrote
Reply to comment by PrimalZed in I spent 20 hours shooting the Horsehead nebula to create my most intricately detailed photo of this region. This area is surprisingly large, and if it were brighter it would appear much larger than the full moon. Make sure you zoom in! [OC] by ajamesmccarthy
The blue stuff is reflecting starlight, the red stuff is actually glowing fluorescent. The nearby stars ionize the hydrogen and make it glow.
benqueviej1 t1_j98s8ag wrote
Reply to I spent 20 hours shooting the Horsehead nebula to create my most intricately detailed photo of this region. This area is surprisingly large, and if it were brighter it would appear much larger than the full moon. Make sure you zoom in! [OC] by ajamesmccarthy
Amazing detail! It's disconcerting how vascular it appears in some areas.
websterhamster t1_j98s3tz wrote
Reply to ‘We found the Artemis-I noise level at 5 km had a crackling quality about 40 million times greater than a bowl of Rice Krispies.’ — Maximum noise measured during Artemis-I launch on 16 Nov. 2022 was higher than predicted by marketrent
I love how they used the extremely technical and scientific benchmark of Rice Krispies to compare the noise level of the Artemis I launch.
I mean, forget explaining decibels. Rice Krispies is something everyone can understand.
Freetrilly OP t1_j98rvqb wrote
Reply to comment by pinkynatbust in (OC) I drew deep space. Hope you guys enjoy! by Freetrilly
Funny thing is this is the first drawing ive done in 15 years. I got a waicom 24 pro and just started going and didnt stop like 3 weeks ago. Ive not a super good artist but something about drawing the deep unknown just feels so natural. I will keep your words next time I’m feeling discouraged thank you again.
IllustriousSignal575 t1_j98rffe wrote
Reply to ‘We found the Artemis-I noise level at 5 km had a crackling quality about 40 million times greater than a bowl of Rice Krispies.’ — Maximum noise measured during Artemis-I launch on 16 Nov. 2022 was higher than predicted by marketrent
Thats a very American way to measure the sound of something.
marketrent OP t1_j98r4w9 wrote
Reply to ‘We found the Artemis-I noise level at 5 km had a crackling quality about 40 million times greater than a bowl of Rice Krispies.’ — Maximum noise measured during Artemis-I launch on 16 Nov. 2022 was higher than predicted by marketrent
Excerpt from the linked release^1 by AIP Publishing about noise measurements taken at five stations located 1.5 km to 5.2 km from the launch pad:^2
>When the Artemis 1 mission was launched by NASA’s Space Launch System, SLS, in November, it became the world’s most powerful rocket, exceeding the thrust of the previous record holder, Saturn 5, by 13%.
>With liftoff came a loud roar heard miles away.
>In JASA Express Letters, published on behalf of the Acoustical Society of America by AIP Publishing, researchers from Brigham Young University and Rollins College in Florida reported noise measurements during the launch at different locations around Kennedy Space Center.
>The data collected can be used to validate existing noise prediction models, which are needed to protect equipment as well as the surrounding environment and community.
>These data will be useful as more powerful lift vehicles, including the SLS series, are developed.
>
>“We hope these early results will help prevent the spread of possible misinformation, as happened with the Saturn 5,” author Kent Gee said.
>“Numerous websites and discussion forums suggested sound levels that were far too high, with inaccurate reports of the Saturn 5’s sound waves melting concrete and causing grass fires.”
>A characteristic feature of rocket launches is a crackling sound from shock waves.
>These shocks represent instantaneous sound pressure increases that are much louder than crackling noises encountered in everyday life.
>Author Whitney Coyle said, “We found the Artemis-I noise level at 5 km had a crackling quality about 40 million times greater than a bowl of Rice Krispies.”
^1 The Roar and Crackle of Artemis 1, AIP Publishing, 14 Feb. 2023, https://publishing.aip.org/publications/latest-content/the-roar-and-crackle-of-artemis-1/
^2 Kent L. Gee, et al. Space Launch System acoustics: Far-field noise measurements of the Artemis-I launch. JASA Express Letters 3, 023601 (2023); https://doi.org/10.1121/10.0016878
PrimalZed t1_j98qurj wrote
Reply to comment by ajamesmccarthy in I spent 20 hours shooting the Horsehead nebula to create my most intricately detailed photo of this region. This area is surprisingly large, and if it were brighter it would appear much larger than the full moon. Make sure you zoom in! [OC] by ajamesmccarthy
> That's not because this area isn't incredibly vibrant, but because your eyes can't resolve color when things are this faint. It's like trying to see the color in flowers in moonlight, you can't.
Is that to say that the red haze here is stuff reflecting light, not emanating it? If so, what is the light it's reflecting emanated from?
throwawaynotes81 t1_j98q364 wrote
Reply to The Tadpole galaxy by Hubble, Its eye-catching tail is about 280,000 light-years long. Also known as UGC 10214 and Arp 188, it is a disrupted barred spiral galaxy located 420 million light-years from Earth in the northern constellation Draco. Credit Image: NASA/ESA/HST/STScI. by Davicho77
Not one person in the comments has made the obvious joke waiting-to-happen. I am impressed.
[deleted] t1_j98q0b9 wrote
Reply to The Tadpole galaxy by Hubble, Its eye-catching tail is about 280,000 light-years long. Also known as UGC 10214 and Arp 188, it is a disrupted barred spiral galaxy located 420 million light-years from Earth in the northern constellation Draco. Credit Image: NASA/ESA/HST/STScI. by Davicho77
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Present_Reason2097 t1_j98pzhw wrote
Reply to comment by Brooksee83 in This image of Mars shows the north polar ice cap, the border between highlands and lowlands, former river valleys, plains covered by dark sands and the large Hellas Planitia impact basin in the south. Credit: ESA/DLR/FU Berlin by MistWeaver80
Woah! Never knew that.thanks!
pinkynatbust t1_j98pyyt wrote
Reply to comment by Freetrilly in (OC) I drew deep space. Hope you guys enjoy! by Freetrilly
Of course, I don't know if art is your passion but never lose sight of it. You've got talent. Scratch that, you've got a gift. Keep making more.
de_hell t1_j98pfav wrote
Reply to comment by Cybor_wak in The Tadpole galaxy by Hubble, Its eye-catching tail is about 280,000 light-years long. Also known as UGC 10214 and Arp 188, it is a disrupted barred spiral galaxy located 420 million light-years from Earth in the northern constellation Draco. Credit Image: NASA/ESA/HST/STScI. by Davicho77
Theres gotta be some kind of life out there. It would be a type of life that our brains really wouldn’t be able to comprehend it.
Freetrilly OP t1_j98os0c wrote
Reply to comment by pinkynatbust in (OC) I drew deep space. Hope you guys enjoy! by Freetrilly
Ty sir! Means alot
Freetrilly OP t1_j98ora0 wrote
Reply to comment by Why_do_i_here in (OC) I drew deep space. Hope you guys enjoy! by Freetrilly
I can send you the full resolution file. I spent alot of time getting the small details perfect
MissBunny09 t1_j98og7x wrote
Reply to comment by jdippey in This image of Mars shows the north polar ice cap, the border between highlands and lowlands, former river valleys, plains covered by dark sands and the large Hellas Planitia impact basin in the south. Credit: ESA/DLR/FU Berlin by MistWeaver80
That could mean so many things. Thank you!
MissBunny09 t1_j98occn wrote
Reply to comment by mortalphysicist in This image of Mars shows the north polar ice cap, the border between highlands and lowlands, former river valleys, plains covered by dark sands and the large Hellas Planitia impact basin in the south. Credit: ESA/DLR/FU Berlin by MistWeaver80
Amazing, absolutely amazing. Thank you so much for sharing!
mortalphysicist t1_j98ntux wrote
Reply to comment by MissBunny09 in This image of Mars shows the north polar ice cap, the border between highlands and lowlands, former river valleys, plains covered by dark sands and the large Hellas Planitia impact basin in the south. Credit: ESA/DLR/FU Berlin by MistWeaver80
Yes! And if you notice the upper half of the picture looks like a dry ocean (you can see the high edge of a coast line). Now, one thing you notice is there are very few craters in that area that looks like it once had an ocean.
This is more evidence that this particular area was covered with water, which absorbed many of the impacts!
mortalphysicist t1_j98nlr3 wrote
[deleted] t1_j98ncsw wrote
Hispanoamericano2000 t1_j98mlwc wrote
Reply to The Tadpole galaxy by Hubble, Its eye-catching tail is about 280,000 light-years long. Also known as UGC 10214 and Arp 188, it is a disrupted barred spiral galaxy located 420 million light-years from Earth in the northern constellation Draco. Credit Image: NASA/ESA/HST/STScI. by Davicho77
The sheer number of entire Galaxies alone in this image apart from the Tadpole Galaxy... holy cow.
djellison t1_j98mkgm wrote
Reply to comment by Monoken3 in This image of Mars shows the north polar ice cap, the border between highlands and lowlands, former river valleys, plains covered by dark sands and the large Hellas Planitia impact basin in the south. Credit: ESA/DLR/FU Berlin by MistWeaver80
Many have advocated for that via a variety of different means.....and it's simply not enough
There is not enough CO2 left on Mars in any known, readily accessible reservoir, if mobilized and emplaced into the atmosphere, to produce any significant increase in temperature or pressure. Even if enough CO2 were to be available, it would not be feasible to mobilize it; doing so would require processing a major fraction of the surface (analogous to regional- or planet-scale strip mining) to release it into the atmosphere, which is beyond present-day technology. Terraforming Mars is therefore not possible in the foreseeable future by utilizing CO2 resources available on the planet.
djellison t1_j98mah6 wrote
Reply to comment by Adialaktos in This image of Mars shows the north polar ice cap, the border between highlands and lowlands, former river valleys, plains covered by dark sands and the large Hellas Planitia impact basin in the south. Credit: ESA/DLR/FU Berlin by MistWeaver80
A spacecraft was sent up there - https://www.nasa.gov/mission_pages/phoenix/main/index.html - and was able to establish ground truth for the existence of sub surface ice.
explodingtuna t1_j98sdhh wrote
Reply to comment by HappyMaskSalesPerson in The Tadpole galaxy by Hubble, Its eye-catching tail is about 280,000 light-years long. Also known as UGC 10214 and Arp 188, it is a disrupted barred spiral galaxy located 420 million light-years from Earth in the northern constellation Draco. Credit Image: NASA/ESA/HST/STScI. by Davicho77
Now put JWST on it just for fun.