Category: Gravity and relativity

Who will win in the epic battle between gravity and other forces?
Lets' investigate gravity, dark matter and dark energy with some very simple experiments!
What are black holes and what would happen if the Sun was replaced by one of them?
How do astronomers detect invisible black holes?
Let's investigate the nature of dark matter and energy with gravitational lensing!
Observing what gravity is doing to the Universe
Understand the mystery of black holes through a hands-on activity.