Scientific anniversary

[Dear_Prudence]

100 years ago today, the news was announced that Edwin Hubble had discovered that the Milky Way was not the only galaxy in the universe.
https://www.alternet.org/milky-way/

[Fiendish Thingy]

1. Duplicate post

The “powers” button allows you to self delete.

[erronis]

3. Question. When you delete a duplicate post, do you also delete the sub-posts?

It seems to me that DU doesn't have the ability to link multiple sub-posts to duplicate OPs.

This is one of the reasons I think DU should go to the "tagging" model. Maybe easier said than done.

[EarnestPutz]

4. Just leave it duplicated. It's good one.

[EarnestPutz]

5. Just leave it duplicated. It's good one.

[Fiendish Thingy]

6. Is that why you posted this twice?

Or was there another reason?

[Beartracks]

7. One post was from this universe. The other came from a mirror universe.

============

[Dear_Prudence]

11. Issue specific

Some people read general discussion while others may only subscribe to "science." I always read my "pets" subscription, but skip other stuff when I am down or busy. Others may do the same. I see duplicate posts all the time, likely for the same reason.

[Fiendish Thingy]

13. This was posted twice in the same (Science) forum.

A lot of times, when there is a delay in a post going through, people hit the post button twice, resulting in duplicate posts that fill up the Latest page unnecessarily.

[Dear_Prudence]

15. Oh, I get it.

I deleted the repeat. Thanks.

[erronis]

2. That is a monumental anniversay. May they keep on coming.

Homo sapiens need to be told, again and again, that they are not the center of the universe.

Their little neighborhood, state, country, continent, or planet is not what is important. Their sun is just one of trillions. Their galaxy is just one of an uncounted number.

And that this universe may not even be the only one.

[angrychair]

8. Not a completely accurate statement

The Persian astronomer Abd al-Rahman al-Sufi was the first to document the observation of the Andromeda galaxy in 964 CE.
Granted he did not describe it as a galaxy but as a "small cloud" but it is the first known written observation of a galaxy outside of our own.

[Dear_Prudence]

12. News report?

Do you have a news report on this? Of course others saw the white fuzz ball in the sky, but Hubble resolved a modern day, long standing question about whether the Milky Way was the entire universe.

[angrychair]

14. It's not my opinion

Or a belief. Or a theory, That ʿAbd al-Raḥmān al-Ṣūfī documented the first observation of another galaxy. That is what the history of astronomy said happened.
What Hubble did was scientifically prove the existence of other galaxies.
These are different things. I was only mentioning it for both clarity and because historically the work of non-white scientists is often minimized in favor of white scientists.
It was only meant to add more context and history to the body of work.

[Dear_Prudence]

16. Thank you.

I agree. So many astronomical discoveries were also made by women, bit I don't recall hearing about them in high school science class either. I attended high school in the early 1970's, but my guess is that everyone but white European men still get left out. 🤔

[mopinko]

17. happened to watch this yesterday. ngt makes the same point.

ancient ppl were much smarter than they get credit for.

[SCantiGOP]

9. A hundred years ago

The majority opinion in the world (but not of scientists) was that the Sun, or Earth, was the center of the universe.

[multigraincracker]

10. Both time and space are infinite.

There is no end or beginning, therefore every possibility happens over and over again forever.

[hunter]

18. That's not a widely accepted theory, but one I like to play with.

You might be interested in Fred Hoyle.

He coined the term "Big Bang" theory in his rejection of it.

Hoyle was buddies with (or at least an acquaintance of...) one of my mentors, a guy who helped me get back into university after I'd been "asked" to take time off a second time.