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Nov
17
reviewed Close How would you calculate expansion rate of universe in Shanon Entropy?
Nov
17
reviewed Close Paper recommendations about the age of the solar system
Nov
17
reviewed Close Black Holes, how do they form?
Oct
28
revised How can we tell if the asteroid 2013 TV135 will hit Earth in 2032?
typo fixed
Oct
10
comment Is there a theoretical limit on telescope's resolution?
@anixx: no idea. My main guess is: political decision (also during the design phase). Then founding institutions that use the VLT are probably mostly interested in extremely faint objects (with the exclusion of rocks :D)
Oct
10
answered Is there a theoretical limit on telescope's resolution?
Oct
5
awarded  Enlightened
Oct
5
awarded  Nice Answer
Sep
25
awarded  Yearling
Jul
21
comment Does near light-speed travel doppler-shift the light from the target into gamma rays?
I think that going that fast you should be more worried about the atoms of hydrogen or helium and the grains of dust that you meet than about gamma rays.
Mar
4
reviewed No Action Needed What will happen to life on Earth when Andromeda and Milky Way galaxies collide?
Mar
4
reviewed Close Age of the universe
Mar
4
reviewed Close Black Hole, Object or Portal?
Jan
3
reviewed No Action Needed What Is The Great Attractor?
Jan
2
reviewed Leave Closed What skills would a software developer need to get a job in space research or exploration organization?
Jan
2
reviewed Leave Closed Which planet or moon has all resources that can be used to sustain life in a controlled biosphere?
Dec
20
comment What was the length of year 1 million years back?
@Envite: I don't think that I have an answer. Besides Walter already expanded my comments
Dec
20
comment When is optical refraction important in astronomy?
@astromax: thanks for editing my posts :D
Dec
19
reviewed No Action Needed How does the Milky Way look like above 66° North and below 66° South?
Dec
19
revised When is optical refraction important in astronomy?
add generalisation to my example