Ultimate space simulation software

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by Watsisname
22 Jun 2023 09:10
Forum: Space Journeys
Topic: Image Dump
Replies: 3098
Views: 942034

Re: Image Dump

Just wanted to say that your images are as amazing as always, Aborygen. I especially like your radio galaxy. :)
by Watsisname
22 Jun 2023 09:06
Forum: Mods and Addons
Topic: Custom star in custom galaxy appearing in the center or outside of the galaxy
Replies: 5
Views: 801

Re: Custom star in custom galaxy appearing in the center or outside of the galaxy

Is 9 million parsecs a big number? I have never done that before 9 million parsecs is 29.4 million light years. (There are 3.26 ly to a parsec.) And that's a little more than 10 times the distance to the Andromeda galaxy. Distant in comparison to nearby galaxies, though not that far compared to the...
by Watsisname
06 Jun 2023 17:58
Forum: Off-topic Discussions
Topic: UFO Sightings and Possible Explanations
Replies: 73
Views: 31492

Re: UFO Sightings and Possible Explanations

Pretty much. Let me know when some of these alien materials are disseminated to universities for study by civilian scientists. Oh, the government would never risk it going public and potentially getting into the hands of our enemies? How convenient for a conspiracy theory. In the meantime, I think t...
by Watsisname
04 Jun 2023 07:37
Forum: Science and Astronomy Discussions
Topic: Science and Astronomy Questions
Replies: 1937
Views: 625141

Re: Science and Astronomy Questions

This might get a little complicated, but if you have a spinning Kerr black hole with two horizons (the event horizon and the Cauchy horizon) does that change anything as far as how long you could survive before hitting the singularity?  Would you make it to the Cauchy horizon or would you die befor...
by Watsisname
04 Jun 2023 06:19
Forum: Science and Astronomy Discussions
Topic: Asteroids, meteors, and meteorites
Replies: 158
Views: 54369

Re: Asteroids, meteors, and meteorites

I'm wondering what I heard when I saw the Perseids.  I guess it could be a bolide.  I see a few fireballs almost every year with the Perseids so one of them could have made that noise as they burned up? Previous discussion on this subject:  UFO Sightings and Possible Explanations - Page 4 - Space E...
by Watsisname
04 Jun 2023 01:54
Forum: Science and Astronomy Discussions
Topic: Science and Astronomy Questions
Replies: 1937
Views: 625141

Re: Science and Astronomy Questions

Thanks Wat-- so the idea of being able to reproduce some of the information that fell into a black hole into its original form sounds like it would be extremely unlikely, the most we can do is perhaps be able to say what might have fallen into it?  Could we ever achieve a level of precision where w...
by Watsisname
04 Jun 2023 01:19
Forum: Science and Astronomy Discussions
Topic: Asteroids, meteors, and meteorites
Replies: 158
Views: 54369

Re: Asteroids, meteors, and meteorites

Could one of these showers also produce meteorites?
Not even a chance. The meteor velocity for both showers is far too high; they burn up completely at very high altitude.
by Watsisname
03 Jun 2023 05:55
Forum: Science and Astronomy Discussions
Topic: Science and Astronomy Questions
Replies: 1937
Views: 625141

Re: Science and Astronomy Questions

If there is no way to unscramble the information, how is that different from information not lost? The paradox was that if Hawking radiation is purely thermal/blackbody radiation, there would be no information about what went into the black hole hidden in that radiation at all. But the information ...
by Watsisname
02 Jun 2023 23:05
Forum: Science and Astronomy Discussions
Topic: Science and Astronomy Questions
Replies: 1937
Views: 625141

Re: Science and Astronomy Questions

Wow this is very interesting-- from your other post I think you implied that it would be possible to unscramble the information but it's very impractical to do so, Wat?  Is there a way to calculate how much energy it would take to unscramble a given amount of information? Very impractical, indeed. ...
by Watsisname
02 Jun 2023 22:39
Forum: Science and Astronomy Discussions
Topic: Astrophotography
Replies: 661
Views: 202391

Re: Astrophotography

Not necessarily... the number and size of prominences does not correlate to sunspot number that much. This is because there are several kinds of prominences, some of which are not related to active regions. Those ones tend to have longer lifespans (so they're more likely to be around at a randomly c...
by Watsisname
02 Jun 2023 16:26
Forum: Science and Astronomy Discussions
Topic: Science and Astronomy Questions
Replies: 1937
Views: 625141

Re: Science and Astronomy Questions

Question Wat, for a spinning Kerr black hole with a ring singularity, would it be less lethal and perhaps even navigable because of that spinning motion? In the idealized mathematical extension for a Kerr black hole, sure, but in reality, no. You would be destroyed by the mass inflation singularity...
by Watsisname
02 Jun 2023 15:28
Forum: Science and Astronomy Discussions
Topic: Science and Astronomy Questions
Replies: 1937
Views: 625141

Re: Science and Astronomy Questions

I think the black hole information paradox has already been solved, although the "solution" is still being investigated.  What it boils down to is that black holes don't evaporate because that would violate quantum mechanics central tenet that information cannot be destroyed No, black hol...
by Watsisname
02 Jun 2023 15:25
Forum: Science and Astronomy Discussions
Topic: Astrophotography
Replies: 661
Views: 202391

Re: Astrophotography

It's amazing this is happening now and when is solar max, Wat, is it close to the time of the solar eclipse next April?  It could be even more spectacular than normal! Yes, the corona looks much different for eclipses near solar max than near solar minimum. There are more active regions, and more c...
by Watsisname
02 Jun 2023 15:16
Forum: Science and Astronomy Discussions
Topic: Asteroids, meteors, and meteorites
Replies: 158
Views: 54369

Re: Asteroids, meteors, and meteorites

The amazing thing is that it actually landed inside a person's house, the odds of that happening must be incredibly low. Quite low, but more than once. Many meteorites have been documented falling onto structures,  cars , and  even a mailbox . Meteorites that do this are sometimes called hammerston...
by Watsisname
05 May 2023 03:16
Forum: Science and Astronomy Discussions
Topic: Science and Astronomy Questions
Replies: 1937
Views: 625141

Re: Science and Astronomy Questions

The slowness of black hole evaporation really is astonishing. Even though I already understood stood as much, I was still taken aback by how small the correction to the event horizon size because of it turns out to be. I figured it would at least be, like, a micrometer or something, which you could ...