A novel theory suggests that the current expansion rate of the universe is not fixed, but was in fact quite different in the ...

Add Yahoo as a preferred source to see more of our stories on Google. I’ve always loved looking up at the night sky. Even though I didn’t pursue science in college, the outer world has never stopped ...

I’ve always loved looking up at the night sky. Even though I didn’t pursue science in college, the outer world has never stopped fascinating me, because that endless stretch above us makes everything ...

Select an option below to continue reading this premium story. Already a Honolulu Star-Advertiser subscriber? Log in now to continue reading. This difference — about 9% — isn’t small, and measurement ...

If there is an absolute law in the universe, it’s that nothing can travel faster than the speed of light. For science-fiction enthusiasts, that’s a bit depressing. Space is big, and while the speed of ...

Astronomers tallying up all the normal matter—stars, galaxies and gas—in the universe today have come up embarrassingly short of the total matter produced in the Big Bang 13.6 billion years ago. In ...

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Start off in any direction and fly through the universe. Out of our solar system, beyond the edge of the Milky Way, through the forest of galaxies that make up our Local Group into the wilderness of ...

Tinkering at their desks with the mathematics of quantum space and time, physicists have discovered a puzzling conundrum. The arcane rules of quantum theory and gravity let them imagine many different ...