Announcement: the Curiosity Podcast is finally here! Subscribe on iTunes here, Google Play Music here and add the RSS feed to your favorite podcast player. If you love it please consider leaving us a review.
How Many Galaxies Are There?
Share the knowledge!
Key Facts In This Video
We can only estimate the number of galaxies inside the bubble that is the observable universe. 00:09
To estimate the number of galaxies in the observable universe, scientists count the stars in a small sample and average the number over 360 degrees. 00:22
There is a rough estimate of as many as 500 billion galaxies in the observable universe. 01:06