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 one year ago
Suppose a star is 300 light years away. The number tells you the distance to the star. It also tells you that the light you are seeing started on its journey from the star 300 years ago. If a star that is nine light years away blew up today, when would we know about it?
 one year ago
Suppose a star is 300 light years away. The number tells you the distance to the star. It also tells you that the light you are seeing started on its journey from the star 300 years ago. If a star that is nine light years away blew up today, when would we know about it?

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JFraser
 one year ago
Best ResponseYou've already chosen the best response.1use the same logic as the 300ly star

HorseCrazyGirlForever
 one year ago
Best ResponseYou've already chosen the best response.0so 9 light years?

JFraser
 one year ago
Best ResponseYou've already chosen the best response.1but remember a light year is a distance, if the star blew up today, we wouldn't see it for ....

HorseCrazyGirlForever
 one year ago
Best ResponseYou've already chosen the best response.010 years?

JFraser
 one year ago
Best ResponseYou've already chosen the best response.1the star is 9 light years away. the light that leaves that star will take 9 years to get here. 9 years

HorseCrazyGirlForever
 one year ago
Best ResponseYou've already chosen the best response.0Oh okay gotcha! Thank you so much! :D
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