Why can I always see a star?
2842
Photons from stars--how do they fill in such large angular distances?
104989
What causes refraction of visible light?
108219
Why can I see through my objects?
73727
Unpolarized light - Why don't light sources then look invisible?
88568
What determines whether colors you can't see are visible or not?
25570
Why do "stripes" appear on raster?
86221
Why do stars flicker?
135445
Why do we rarely see recumbents and almost never see velomobiles?
82237
Is it possible to witness a circular rainbow?
82440
As the universe ages, will we see more stars or less?
11021
Will the night sky eventually be bright?
136426
why this face is always black?
117274
Why don't we see solar and lunar eclipses often?
133584
How to have colors in Milky-way?
135951
How many naked-eye stars have 'died' since they emitted the light we are seeing?
8021
What do hollow/filled stars mean in chat?
34411
What lens characteristics are important in star photography?