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.

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

[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.

[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.