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, ...

Biggest vs smallest - how do we measure up in the grand scheme of the universe? Explore the fascinating scales of existence, from quantum particles to the observable universe’s edge. A journey into ...

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 ...

The universe's expansion means its size is bigger than its age suggests. The universe's expansion doesn't have a speed limit like objects within it. Distant galaxies move away from us as space itself ...

For years, astronomers and physicists have calculated the age of our universe by measuring the time elapsed since the Big Bang and by studying the oldest stars based on the redshift of light coming ...

It's a question that has vexed scientists for ages: How old is our universe? The question is simple enough, but as the years go by it's become apparent that settling on the answer isn't quite so easy.

Kurzgesagt’s latest In a Nutshell video takes us once more to the depths of space to look at the scary phenomena that are black holes. Rather than go into topics like dark matter and how black holes ...

The universe is approaching the midpoint of its 33-billion-year lifespan, a Cornell physicist calculates with new data from dark-energy observatories. After expanding to its peak size about 11 billion ...

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 ...