dr-becky 4 months ago
astrophysicist #Space and Time

Dr. Becky | How Many Galaxies Are There in The Universe?

Well our best estimate in 2026 is that there’s at least 2 trillion galaxies, islands of billions of stars just like our own Milky Way galaxy. But how do we actually know that?

That’s far too big of a number for anyone to have gone out and literally done a count one by one [insert home alone count scene], so what do we do instead?


Well in this video we’re going to dive in to how us astrophysicists get at this number, and we’re going to try and put that number into content, how big is 2 trillion really? 

Dr. Becky
astrophysicist