Science & Universe
How Black Holes Actually Work
Not cosmic vacuum cleaners, but regions where gravity wins completely. Here is what really happens at the event horizon — and how we finally managed to see one.
8 min read
#Astronomy
Planets, stars, galaxies and the instruments we use to observe them.
#Astronomy articles
3 articles · newest first
Science & UniverseWhat Is Dark Matter?
Most of the matter in the universe does not shine, reflect or absorb light. We know it is there only because of its gravity.
6 min read
Science & UniverseWhy a Day on Venus Is Longer Than Its Year
Venus takes longer to spin once than to orbit the Sun — and it spins backwards. Here is what that means on its surface.
4 min read