Questions with the keyword 'light'

• If light is shining onto something does it add more weight to that object? Even by a billionth of a gram? by tosty55 to Aggelos, Andrew, Eileen, Naomi, Shane Comments: (so far, 2s comments )
• The Oort Cloud, if it is this massive cloud of comets why don’t they reflect light or anything back to the telescopes by tosty55 to Aggelos, Andrew, Eileen, Naomi, Shane Comments: (No comments so far )
• Why does light travel faster than sound?? by caoimheneary and 1 other. to Aggelos, Andrew, Eileen, Naomi, Shane Comments: (No comments so far )