Olbers’ Paradox
How Many Galaxies Are There in the Universe?
Did you hear that the Universe has 10x the number of galaxies? How did astronomers discover this, and what does…
8 years ago
Why Is Space Black?
Since there are stars and galaxies in all directions, why is space black? Shouldn't there be a star in every…
10 years ago
Why is the Sky Dark at Night?
The Minute Physics folks have created another great video, this time explaining why the sky is dark at night. Although…
12 years ago