Exploring the Largest Objects in the Universe

What If: Science, Theory, and Possibilities · Aug 19, 2026 · 27m

Today, we explore the colossal scale of the largest objects in our observable Universe. It's all about size, not mass. While black holes and neutron stars are incredibly dense, they don't make the cut on our list of massive objects.

Join us as we delve into the vastness of space and discover just how 'huge' things can get.

Timeline:

00:00 True Scale of the Largest Objects in the Universe

01:34 Jupiter

02:43 ROXs 42Bb

07:12 The Largest Stars

09:42 Sirius A

10:42 Pollux

11:22 Arcturus

12:50 Betelgeuse

14:29 Stephenson 2-18

16:21 Ultra-massive Black Hole (TON 618)

17:48 Phoenix A*

19:13 The…