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, ...

There’s something about comparing the size of objects—say, moons or sci-fi starships—that is endlessly appealing. But while comparisons we’ve seen cover subsets of stuffs, none have looked at the big ...

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 ...