Astronomers hate the Moon because it ruins perfectly good observing nights. But is it possible that we all need the Moon for our very existence?
How long would it take for the gravitational well created by the Sun to disappear, and the Earth and the rest of the planets fly off into space?
Bad news, our Sun is living on borrowed time. It’s only got a few billion years left. How can we save the Sun?
One of the strangest implications of Relativity is the concept of time dilation; how people moving at different speeds will experience different amounts of time.
Why live on Earth when you can live on Mars?
The speed of light gives us an amazing tool for studying the Universe. Lets study about it.
Fraser Cain explains why we have seasons. Why is it warm in the summer and cold in the winter? It all happens because of the tilt of the Earth’s axis.