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Space Stuff Collection
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| Banana | Date: Thursday, 18.08.2016, 22:53 | Message # 331 |
 Astronaut
Group: Users
United States
Messages: 56
Status: Offline
| They may exist in our universe, but it is rather unlikely because white holes are speculated to decrease entropy and therefore break the laws of thermodynamics. However, if the multiverse exists, white holes may appear in universes which do not follow these rules.
Hello.
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| Watsisname | Date: Friday, 19.08.2016, 00:56 | Message # 332 |
 Galaxy Architect
Group: Global Moderators
United States
Messages: 2613
Status: Offline
| Quote Hornblower (  ) They could still be possible, we just haven't found any yet, just like how people thought black holes were just SciFi
They are not in the same range of possibility. Black holes are not fundamentally impossible because they can be made from matter if it collapses enough. It was initially hard to believe that sufficient collapse could occur in nature, but we eventually discovered that it does.
But there is no process for creating a white hole. You can't make one from a distribution of matter or energy. It has to be an initial condition of the space-time.
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| Banana | Date: Friday, 19.08.2016, 01:35 | Message # 333 |
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Astronaut
Group: Users
United States
Messages: 56
Status: Offline
| We are not actually certain about the formation of white holes. There is some speculation that black holes transform into white holes at the end of their lifespans, but this is not proven. Currently white holes are completely theoretical and shrouded in mystery. Black holes, on the other hand, are rather common, and quite a bit of information is available on them.
Hello.
Edited by Banana - Friday, 19.08.2016, 01:37 |
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| Watsisname | Date: Friday, 19.08.2016, 02:32 | Message # 334 |
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Galaxy Architect
Group: Global Moderators
United States
Messages: 2613
Status: Offline
| Quote Banana ( ) There is some speculation that black holes transform into white holes at the end of their lifespans, but this is not proven.
Wat. I've never heard this, do you know of a paper offhand?
Added: Oh, found it. According to a model in quantum gravity. Weird!
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| MangoJuice | Date: Monday, 12.09.2016, 07:00 | Message # 335 |
 Observer
Group: Newbies
United States
Messages: 6
Status: Offline
| New mars pics!
More here
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| Aerospacefag | Date: Monday, 19.09.2016, 22:05 | Message # 336 |
 Pioneer
Group: Users
Russian Federation
Messages: 401
Status: Offline
| Not really sure where to put this new video.
It does show that it is possible to simulate galaxy pretty accurate, but it seems to be a task so complex that no ordinary computer can handle at any rate.
http://www.popularmechanics.com/space....-galaxy
Quote A group of astronomers led by the California Institute of Technology have created the most accurate model of the Milky Way's formation ever produced. By using a network of 2,000 computers running in parallel, the research team was able to accurately simulate the process by which pockets of gas and dust coalesced into our galaxy, starting just moments after the Big Bang 13.8 billion years ago and ending with today's galaxy. |
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| DoctorOfSpace | Date: Tuesday, 20.09.2016, 00:22 | Message # 337 |
 Galaxy Architect
Group: Global Moderators
Pirate
Messages: 3600
Status: Offline
| Maybe in another 10 years if Thz computing becomes standard.
Intel Core i7-5820K 4.2GHz 6-Core Processor
G.Skill Ripjaws V Series 32GB (4 x 8GB) DDR4-2400 Memory
EVGA GTX 980 Ti SC 6GB
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| Solaris | Date: Friday, 07.10.2016, 21:52 | Message # 338 |
 World Builder
Group: Global Moderators
France
Messages: 731
Status: Offline
| Protostar's light echo ! 
More infos
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| Watsisname | Date: Friday, 07.10.2016, 23:45 | Message # 339 |
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Galaxy Architect
Group: Global Moderators
United States
Messages: 2613
Status: Offline
| Whoa.
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| Destructor1701 | Date: Saturday, 08.10.2016, 03:26 | Message # 340 |
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Pioneer
Group: Users
Ireland
Messages: 533
Status: Offline
| That is so damn COOL!
I need to know the background of this research, but I'm loving how the interstellar dust is being illuminated. Mind-blowing!
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| midtskogen | Date: Saturday, 26.11.2016, 07:18 | Message # 341 |
 Star Engineer
Group: Users
Norway
Messages: 1674
Status: Offline
| I received several questions yesterday about a possible large meteor seen from Northern Norway, but it seems to be a rocket launch instead. I published something on our website (use Google translate). Observers say it exploded. Hard to judge from the picture. Perhaps it just was a first stage separations. I haven't found this launch announced anywhere, but the Russians might not bother. Surely this must be of Russian origin. The photo was taken from 70.7N 23.7E towards ESE.
NIL DIFFICILE VOLENTI
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| Watsisname | Date: Saturday, 26.11.2016, 07:40 | Message # 342 |
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Galaxy Architect
Group: Global Moderators
United States
Messages: 2613
Status: Offline
| Yeah, I concur with that. Probably just a stage separation. If it was headed for orbit, I'd think an explosion at that point would have made a much more spectacular cloud.
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| midtskogen | Date: Saturday, 26.11.2016, 08:52 | Message # 343 |
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Star Engineer
Group: Users
Norway
Messages: 1674
Status: Offline
| I spoke with someone who claimed that there was a spiralling pattern in the smoke, which could easily happen for a failed rocket, but I suppose a separate stage also could spin and at least briefly produce a spiral trail.
NIL DIFFICILE VOLENTI
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| Watsisname | Date: Sunday, 27.11.2016, 08:44 | Message # 344 |
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Galaxy Architect
Group: Global Moderators
United States
Messages: 2613
Status: Offline
| Still very slowly going through all of the Apollo 17 mission in real time. Just got to the powered descent and landing. Wow, what an amazing view those men had.
From the LM, shot of the CSM right in front of the landing site on the prior orbit:
And even more impressive is the video.
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| Hornblower | Date: Sunday, 27.11.2016, 16:24 | Message # 345 |
 World Builder
Group: Users
United States
Messages: 714
Status: Offline
| Watsisname, I'm still on the trip to the moon 
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