James Webb Telescope captures timelapse of the supernova remnant Cassiopeia A This timelapse video using data from NASA’s James Webb Space Telescope highlights the evolution of one light echo in the ...
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Go outside right now. What’s the farthest thing you can see? A tree? A bird? What about the Moon? It’s 250,000 miles away. The Sun is 400 times farther than that, at nearly 100 million miles (but ...
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