Posts: 8,948
Threads: 562
Likes Received: 11,422 in 4,789 posts
Likes Given: 13,678
Joined: Oct 2018
Reputation:
59
02-29-2020, 02:46 PM
Breathable oxygen in another galaxy?
According to this, yes
Quote:Astronomers have spotted molecular oxygen in a galaxy far far away, marking the first time that this important element has ever been detected outside of the Milky Way.
....................
Now, a team led by Junzhi Wang, an astronomer at the Shanghai Astronomical Observatory, reports the discovery of molecular oxygen in a dazzling galaxy called Markarian 231, located 581 million light years from the Milky Way.
Posts: 5,077
Threads: 133
Likes Received: 8,592 in 3,570 posts
Likes Given: 14,693
Joined: Oct 2018
Reputation:
34
02-29-2020, 03:04 PM
Breathable oxygen in another galaxy?
(02-29-2020, 02:46 PM)Phaedrus Wrote: According to this, yes
Quote:Astronomers have spotted molecular oxygen in a galaxy far far away, marking the first time that this important element has ever been detected outside of the Milky Way.
....................
Now, a team led by Junzhi Wang, an astronomer at the Shanghai Astronomical Observatory, reports the discovery of molecular oxygen in a dazzling galaxy called Markarian 231, located 581 million light years from the Milky Way.
In a galaxy, far far away?
R.I.P. Hannes
Posts: 23,596
Threads: 506
Likes Received: 29,533 in 14,105 posts
Likes Given: 6,499
Joined: Jan 2019
Reputation:
41
02-29-2020, 04:17 PM
Breathable oxygen in another galaxy?
Long ago?
Robert G. Ingersoll : “No man with a sense of humor ever founded a religion.”
Posts: 15,693
Threads: 325
Likes Received: 13,164 in 7,353 posts
Likes Given: 11,918
Joined: Sep 2018
Reputation:
28
02-29-2020, 04:36 PM
Breathable oxygen in another galaxy?
Oxygen is the second most common element in the Universe, after administratium.
Posts: 5,077
Threads: 133
Likes Received: 8,592 in 3,570 posts
Likes Given: 14,693
Joined: Oct 2018
Reputation:
34
02-29-2020, 05:21 PM
Breathable oxygen in another galaxy?
Possiblys Vaders mask is broken.
R.I.P. Hannes
Posts: 5,645
Threads: 42
Likes Received: 5,637 in 2,843 posts
Likes Given: 5,785
Joined: Dec 2018
Reputation:
27
02-29-2020, 06:10 PM
Breathable oxygen in another galaxy?
Without a sufficient amount of hydrogen sulfide it just wouldn't feel like home.
Being told you're delusional does not necessarily mean you're mental.
Posts: 4,146
Threads: 9
Likes Received: 4,424 in 2,145 posts
Likes Given: 5,541
Joined: Oct 2018
Reputation:
25
02-29-2020, 08:47 PM
Breathable oxygen in another galaxy?
(02-29-2020, 06:10 PM)brewerb Wrote: Without a sufficient amount of hydrogen sulfide it just wouldn't feel like home.
Well, there goes the neighborhood.
“I expect to pass this way but once; any good therefore that I can do, or any kindness that I can show to any fellow creature, let me do it now. Let me not defer or neglect it, for I shall not pass this way again.” (Etienne De Grellet)
Posts: 429
Threads: 3
Likes Received: 639 in 295 posts
Likes Given: 3,195
Joined: Sep 2018
Reputation:
17
02-29-2020, 11:54 PM
Breathable oxygen in another galaxy?
(02-29-2020, 04:17 PM)Minimalist Wrote: Long ago?
About 581 million years ago.
No gods necessary
Posts: 2,668
Threads: 34
Likes Received: 3,531 in 1,449 posts
Likes Given: 2,925
Joined: Sep 2018
Reputation:
30
03-01-2020, 03:06 AM
(This post was last modified: 03-01-2020, 03:06 AM by Paleophyte.)
Breathable oxygen in another galaxy?
(02-29-2020, 02:46 PM)Phaedrus Wrote: According to this, yes
No. They've spotted O2 in a galaxy a long way away. To be breathable you'd want it pretty close to atmospheric pressure and not filled with horiffying contaminants. It's almost certainly neither. So what they've found is diatomic oxygen in a galaxy far away, which is pretty cool, but not breathable.
Posts: 3,886
Threads: 51
Likes Received: 5,112 in 2,294 posts
Likes Given: 6,069
Joined: Nov 2018
Reputation:
40
03-01-2020, 06:35 AM
Breathable oxygen in another galaxy?
I wonder how much oxygen we'd need to bring with us to make it to this other oxygen positive galaxy?
"Talk nonsense, but talk your own nonsense, and I'll kiss you for it. To go wrong in one's own way is better than to go right in someone else's.
―F. D.
Posts: 15,693
Threads: 325
Likes Received: 13,164 in 7,353 posts
Likes Given: 11,918
Joined: Sep 2018
Reputation:
28
03-01-2020, 10:10 AM
Breathable oxygen in another galaxy?
(03-01-2020, 06:35 AM)Mark Wrote: I wonder how much oxygen we'd need to bring with us to make it to this other oxygen positive galaxy?
Right off the top of my head and applying well known scientific principles I'd have to say "enough."
Posts: 3,886
Threads: 51
Likes Received: 5,112 in 2,294 posts
Likes Given: 6,069
Joined: Nov 2018
Reputation:
40
03-01-2020, 08:02 PM
Breathable oxygen in another galaxy?
(03-01-2020, 10:10 AM)Gawdzilla Sama Wrote: (03-01-2020, 06:35 AM)Mark Wrote: I wonder how much oxygen we'd need to bring with us to make it to this other oxygen positive galaxy?
Right off the top of my head and applying well known scientific principles I'd have to say "enough."
Yeah that would be my preference.
"Talk nonsense, but talk your own nonsense, and I'll kiss you for it. To go wrong in one's own way is better than to go right in someone else's.
―F. D.
Posts: 2,668
Threads: 34
Likes Received: 3,531 in 1,449 posts
Likes Given: 2,925
Joined: Sep 2018
Reputation:
30
03-03-2020, 03:12 AM
Breathable oxygen in another galaxy?
It won't matter greatly. You'll run out of lifespan long before you get there. And you might be in for a bit of disappointment. The light that they measured that has the telltale signature of O2 molecules left that galaxy during the Ediacaran. Round about the time that Hallucigenia was crawling swimming locomoting around the seas. Conditions may have changed over the last half billion years.
Posts: 5,797
Threads: 41
Likes Received: 8,556 in 3,707 posts
Likes Given: 13,014
Joined: Sep 2018
Reputation:
27
03-03-2020, 04:04 PM
Breathable oxygen in another galaxy?
You see, the oxygen is already there. we just need to bring a very small tiny amount, and that would fix everything for us!
(skips out of thread on my naturopathic toe-shoes)
Posts: 15,693
Threads: 325
Likes Received: 13,164 in 7,353 posts
Likes Given: 11,918
Joined: Sep 2018
Reputation:
28
03-03-2020, 04:31 PM
Breathable oxygen in another galaxy?
(03-03-2020, 04:04 PM)skyking Wrote: You see, the oxygen is already there. we just need to bring a very small tiny amount, and that would fix everything for us!
(skips out of thread on my naturopathic toe-shoes)
There are clouds of the stuff floating around out in space. Water is common because hydrogen and oxygen are common.
Posts: 5,797
Threads: 41
Likes Received: 8,556 in 3,707 posts
Likes Given: 13,014
Joined: Sep 2018
Reputation:
27
03-03-2020, 04:40 PM
Breathable oxygen in another galaxy?
I've been binge-watching the expanse on Amazon Prime. it's been lots of fun, they ignore so many things but it still has a flavor of accuracy. As in the other thread, it doesn't really deal with that fatal space radiation thing
Posts: 15,693
Threads: 325
Likes Received: 13,164 in 7,353 posts
Likes Given: 11,918
Joined: Sep 2018
Reputation:
28
03-03-2020, 04:53 PM
Breathable oxygen in another galaxy?
(03-03-2020, 04:40 PM)skyking Wrote: I've been binge-watching the expanse on Amazon Prime. it's been lots of fun, they ignore so many things but it still has a flavor of accuracy. As in the other thread, it doesn't really deal with that fatal space radiation thing
That's because Dr. Sumguy invented this thing so you don't have to worry about radiations.
But seriously, consider that you don't have coronal mass ejections all the time. Then consider what you can do if you hear one is coming. The best radiation shield proposed so far is plain old ice. You need to bring water anyway. You put a tank covering, say, one side of the ship with about a foot of water. Then if a CME is predicted to be coming your way you huddle behind the ice for a while. Reports are there is a lot of water on the Moon, no surprising if it was once part of Earth, so lifting costs wouldn't be that great.
Posts: 5,797
Threads: 41
Likes Received: 8,556 in 3,707 posts
Likes Given: 13,014
Joined: Sep 2018
Reputation:
27
03-03-2020, 05:38 PM
(This post was last modified: 03-03-2020, 05:39 PM by skyking.)
Breathable oxygen in another galaxy?
in the Expanse they are mining the belt. plenty of ice to be had there
Posts: 15,693
Threads: 325
Likes Received: 13,164 in 7,353 posts
Likes Given: 11,918
Joined: Sep 2018
Reputation:
28
03-03-2020, 07:03 PM
Breathable oxygen in another galaxy?
(03-03-2020, 05:38 PM)skyking Wrote: in the Expanse they are mining the belt. plenty of ice to be had there
And with a supply of cheap rocket motors and guidance packages they could pelt Mars with a great many ice balls, enough perhaps to change the climate there.
Posts: 2,668
Threads: 34
Likes Received: 3,531 in 1,449 posts
Likes Given: 2,925
Joined: Sep 2018
Reputation:
30
03-04-2020, 12:55 AM
Breathable oxygen in another galaxy?
(03-03-2020, 04:53 PM)Gawdzilla Sama Wrote: (03-03-2020, 04:40 PM)skyking Wrote: I've been binge-watching the expanse on Amazon Prime. it's been lots of fun, they ignore so many things but it still has a flavor of accuracy. As in the other thread, it doesn't really deal with that fatal space radiation thing
That's because Dr. Sumguy invented this thing so you don't have to worry about radiations.
But seriously, consider that you don't have coronal mass ejections all the time. Then consider what you can do if you hear one is coming. The best radiation shield proposed so far is plain old ice. You need to bring water anyway. You put a tank covering, say, one side of the ship with about a foot of water. Then if a CME is predicted to be coming your way you huddle behind the ice for a while. Reports are there is a lot of water on the Moon, no surprising if it was once part of Earth, so lifting costs wouldn't be that great.
You may want more than a foot of the stuff for long duration trips.
And CMEs may not be your biggest worry. Solar wind keeps out the worst of the cosmic radiation, but if you're mucking about out past the Voyager spacecraft then you no longer have that protection. Cosmic rays are very energetic and the exotic particles that they spawn can penetrate hundreds of meters of rock. They aren't as instantly lethal as a powerful CME but they're constant. Without effective shielding the cumulative dose over a few years would be very unpleasant. A magnetic bubble might help but they're still working on that.
Posts: 15,693
Threads: 325
Likes Received: 13,164 in 7,353 posts
Likes Given: 11,918
Joined: Sep 2018
Reputation:
28
03-04-2020, 09:08 AM
Breathable oxygen in another galaxy?
Rough numbers. And we're going to Mars, we're not looking for the Wheelmen of Aldebaran I.
|