If stars are hundreds of light years away, then how do we know they're still there?

The star could have died before it's light reached Earth. What if all we're seeing is just an image, a light, of the star, and not the real thing? If it takes hundreds of years for light, (which moves really quickly- it's how long it takes for you to "see" something, like an apple or a... show more The star could have died before it's light reached Earth. What if all we're seeing is just an image, a light, of the star, and not the real thing? If it takes hundreds of years for light, (which moves really quickly- it's how long it takes for you to "see" something, like an apple or a computer, right?)

And when we do watch a star die, are we really watching it die hundreds of light years after it's REAL death?

Or is it all just relative to the lifespan of the star?
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