KEY OBSERVATIONS Light from a dead star exploded ten billion years ago, yet it reached Earth not once, but several times, ...
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Watch a Supernova's Expansion Over 25 Years in Dramatic NASA Timelapse
Kepler's supernova remnant is extremely exciting for astronomers – a rare example of a supernova for which we have a clear ...
Black holes are not cosmic vacuum cleaners, but they are among the universe’s most extreme objects - born from collapsing ...
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