Timeline for answer to Can a habitable world exist that would orbit in and out of a nebula? by The Square-Cube Law
Current License: CC BY-SA 3.0
Post Revisions
2 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Apr 1, 2018 at 13:29 | comment | added | Martin Bonner supports Monica | The sun is about 4.6 billion years, years old. First life on earth was about 3.8-4.3 billion years ago - so less than a billion years for earth to become habitable. If you insist on oxygen in the atmosphere, that's still only a couple of billion years from the formation of the sun. | |
| Mar 29, 2018 at 12:42 | history | answered | The Square-Cube Law | CC BY-SA 3.0 |