Questions with the keyword 'light'

• Where does light goes when a door is closed, leaving the room in darkness? Shouldn’t there still be loads of light by anon-106860 to Jim, Scott Comments: (No comments so far )
• How can a red shift look red when there would still be the same amount of blue visible, it’s just the gamma rays which by anon-106860 to Adrian, Gaia, Jim, Scott, Vicky Comments: (so far, 3s comments )
• Is it true that black holes actually glow? If so, why? by anon-106860 to Adrian, Gaia, Jim, Scott, Vicky Comments: (No comments so far )