How is the distance to the Moon and other celestial bodies measured?

The planet Earth and its satellite, the Moon, separated by an empty space

Planets and stars look like small dots of lights from Earth. Humans cannot determine how far celestial bodies are just by looking up the sky with naked eyes. The good thing, astronomers have come with some ways to measure their distances from their observation stations. Back then, people thought that Earth was … Read more

How do we know that fusion reaction takes place on the Sun?

How do we know that fusion reaction takes place on the Sun

We live in a world where nuclear reactions determine the outcome of everything. What most people do not know is that they are the basis of atomic bombs and other significantly dangerous objects. In fact, these reactions are sometimes natural as well. For centuries, all kinds of nuclear reactions have been occurring … Read more

Why can’t you look directly at an eclipse?

Why can't you look directly at an eclipse?

An eclipse is one of the fascinating events brought by nature. It happens when the moon passes between the Earth and the Sun. The moon blocks the light of the Sun from reaching our planet, leaving a shadow on Earth. A total solar eclipse happens when the moon entirely blocks the Sun. … Read more

How was the Moon formed?

How was the Moon formed?

The story behind the moon’s existence is still shrouded with mysteries. Until now, humans still don’t know its exact origins. Through time, many scientists have shared various theories about how the moon formed or where did it come from. Wondering about the moon’s birth has become a pastime for scientists and philosophers, … Read more