Twinkle Twinkle Little Star!

Twinkle twinkle little star,

I don’t wonder what you are.

From the spectroscopic ken,

I know that you are Hydrogen,

Twinkle twinkle little star,

I wonder what you don’t are!

The third line means that scientists use a spectroscope to find out that stars were made out of hydrogen. A spectroscope is like a telescope, but there is a prism instead of the eye piece. Scientists also used it to find the spectral signature, which is like a fingerprint for elements. Then they pointed it at the stars and found out that they were made of hydrogen.


By Maya.