Skip to main content
Search type Search syntax
Tags [tag]
Exact "words here"
Author user:1234
user:me (yours)
Score score:3 (3+)
score:0 (none)
Answers answers:3 (3+)
answers:0 (none)
isaccepted:yes
hasaccepted:no
inquestion:1234
Views views:250
Code code:"if (foo != bar)"
Sections title:apples
body:"apples oranges"
URL url:"*.example.com"
Saves in:saves
Status closed:yes
duplicate:no
migrated:no
wiki:no
Types is:question
is:answer
Exclude -[tag]
-apples
For more details on advanced search visit our help page
Results tagged with
Search options not deleted user 627

Questions regarding the Sun and objects orbiting it.

9 votes

What was the length of year 1 million years back?

(Disclaimer: As I already pointed out in a comment to the question above, I never did a calculation with $H_0$ before and I might be utterly, horrible wrong with my interpretation.) If you completely …
Alexander Janssen's user avatar
2 votes

Do solar systems have to evolve in a galaxy?

Stars form in star-formation regions, which itself develop from molecular clouds. The paper "The Minimum Mass of Molecular Cloud Cores" [1] claims that there is a minimum mass and density for a molecu …
Alexander Janssen's user avatar