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, ...

It’s hard to imagine just how large something is in a fictional universe until it’s been compared to a reference; either one from reality, or another fictional universe. And we know this, undoubtedly, ...

I first heard about the genre of “size comparison” videos on YouTube from this article in the New York Times, written by a mom whose seven-year-old son had become obsessed with them. He’s at a ...

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 ...