In this video, the channel—which sources its research from astrophysicists and the like—goes over the sizes of different black holes in the universe. As with other cosmological size comparisons, ...

If Earth had the same diameter as the head of a pushpin, how much would all of the other celestial bodies in the universe need to shrink to scale proportionally? It’s a fun, ridiculous question and ...

Way back in 1990 I tossed off a fluffy item for Scientific American, “Here a Universe, There a Universe,” about whether our cosmos might be just one in an “infinitude,” as several theories of physics ...

Scientists can only see so far before they run into the edge of the universe. Will we ever know if anything lies beyond? This image shows the cosmic microwave background—the oldest light in the ...

It’s one quantum leap for mankind. Parallel dimensions are no longer restricted to Marvel flicks. Google’s cutting-edge quantum chip Willow has prompted discussions among scientists about the ...

HUMANS have always wanted to understand the universe: where it came from, how it works and how it will end. It is, perhaps, the thing that sets our species apart. The good news is that after hundreds ...

Anybody who spends time thinking about the cosmos knows what it’s like to have a brain full of black holes (in a good way). But while Sagan-ian daydreaming about the massive regions of spacetime ...