Neutron stars — the compressed remains of massive stars gone supernova — are the densest " normal " objects in the known universe ( black holes are technically denser, but far from normal ). Just a single sugar-cube worth of neutron-star material would weigh 100 million tons here on Earth, or about the same as the entire human population.
PTELook at the text below. In 35 seconds, you must read this text aloud as naturally and clearly as possible. You have 35 seconds to read aloud.
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Beginning in 35 seconds.