If the universe is expanding, then what is it expanding into, and what is it expanding from? Where's the edge of the universe ...
Modern cosmology reveals a universe expanding uniformly without a spatial center or edge. The Big Bang wasn't a localized explosion but a simultaneous ...
For science-fiction enthusiasts, that’s a bit depressing. Space is big, and while the speed of light is incredibly fast to us ...
The Universe is immense. Our most powerful telescopes observe galaxies whose light has taken more than 10 billion years to ...
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Dark matter and dark energy: What the universe is made of, and what we still don’t know
Welcome to the age of precision cosmology, a scientific era in which astronomers and physicists have measured almost everything about our universe—except for its deepest mysteries: dark matter and ...
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