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comment Could spy satellites use laser guide stars (for adaptive optics)?
I suggest leaving the question open. Not because it is a great question per se, but rather because it addresses some incorrect notions about the technologies used in astronomy: telescopes, satellites, and guide star lasers. Also, the answer addresses these misconceptions in a way that is relevant both to the question and also in general for those who may not understand how, and why, the guide star laser is used. That is very relevant to this site.
1d
answered Could spy satellites use laser guide stars (for adaptive optics)?
Jun
8
revised Calculating area of visible sky
Oops, math!
Jun
3
comment Doesn't gravity attract objects in space until they collide?
@Envite: Could you please remove your earlier comment about the answer being plain wrong (before the edit). It seems that people are downvoting due to that. Thanks.
Jan
31
awarded  Nice Question
Jan
11
revised How did scientists determine an estimate of the number of planets greater than Sedna's size to exist in the Inner Oort Cloud?
Add reference.
Jan
11
comment How did scientists determine an estimate of the number of planets greater than Sedna's size to exist in the Inner Oort Cloud?
I hope you don't mind that I've edited in a reference. I had no idea who Mike Brown is and it is hard to Google for as there is a current news item about an unrelated man with the same name.
Jan
11
suggested approved edit on How did scientists determine an estimate of the number of planets greater than Sedna's size to exist in the Inner Oort Cloud?
Jan
4
comment How is the diameter of a gas giant calculated?
Related: Why is Jupiter so sharply defined?.
Jan
4
answered Calculating area of visible sky
Dec
31
answered How to see Saturn's rings through a pair of binoculars?
Dec
28
revised What to look for in a tripod for binoculars?
added 130 characters in body
Dec
24
revised What to look for in a tripod for binoculars?
Add link
Dec
24
revised What should I look for in an astronomy tripod?
added 91 characters in body
Dec
24
revised What to look for in a tripod for binoculars?
added 91 characters in body
Dec
22
answered What to look for in a tripod for binoculars?
Dec
20
comment Stable polar solar orbit with the Earth continuously observable
@Neomada: Noordung's edit makes your question more appealing to snobs like me who are more likely to read a question that is properly formatted than one which isn't. You should be thanking him, not insinuating that his motives were cynical.
Dec
20
comment If the moon wasn't receding from Earth, what would be the impact on the weather and tides?
The energy of the sound of waves crashing comes from the moon. I am going to mention this to my daughters next time we are at the beach with the moon visible. Thank you for this wonderful insight.
Dec
20
answered Smallest body that can be observed from Earth?
Dec
20
answered Can Jupiter's bands be made out using a 15x70 pair of binoculars?