3 ms·
100 billion is the only number in cosmology you need to remember: stars in the milky way, galaxies in the observable universe, and age of the universe (in dog y
by mr_mitm 2y ago
100 billion is the only number in cosmology you need to remember: stars in the milky way, galaxies in the observable universe, and age of the universe (in dog years).
- bufferoverflow 2y agoNo. The estimated number of galaxies in the observable universe is between 200 billion and 2 trillion. https://en.wikipedia.org/wiki/Galaxy https://en.wikipedia.org/wiki/Galaxy The number of stars in our galaxy is estimated between 100 and 400 billion. https://en.wikipedia.org/wiki/Milky_Way https://en.wikipedia.org/wiki/Milky_Way
- 3eb7988a1663 2y agoWhat's an order of magnitude between friends?
- saagarjha 2y agoClearly you’re not a cosmologist if you care about digits of accuracy ;)
- HPsquared 2y agoOr 10^10, close enough