Explore The Moon's Surface
You have probably seen the Moon in the sky, but have you ever studied it in detail?
Create An Expanding Universe
Why Does the Moon Have Phases?
The Moon is the brightest object in the night sky when its whole face is showing. This only happens at full Moon. So why isn't it always a full Moon?
Why Does the Earth Have Tides?
The level of the sea rises and falls about 2 times each day. We call these changes tides. But what causes them?
Telescopes Quiz
Telescopes are used to magnify distant objects. They are a vital tool for astronomy. Over the last few hundred years, scientists and engineers have built bigger and better telescopes, revealing the mysteries of the Universe. But how much do you know about telescopes on Earth and beyond?