Timeline for Undiscovered dwarf planets
Current License: CC BY-SA 4.0
2 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Jun 22, 2021 at 11:39 | comment | added | leftaroundabout | “Galaxies contain a lot of stars, each of which are roughly as luminous as our sun”... correct, but actually a lot of the brightness comes from a few much more luminous stars. (This only reinforces the point you were making.) — “Supermassive black holes are dark”... except they tend to have an accretion disk which is anything but dark. | |
| Jun 20, 2021 at 22:05 | history | answered | Allure | CC BY-SA 4.0 |