Red dwarfs are the most common type of star in the universe.

It is believed that black dwarfs are formed by the cooling of white dwarfs.

A sub-brown dwarf is a celestial body between a planet and a brown dwarf.

Please imagine the day when extraterrestrials come to Earth.

The celestial pair is beautifully coloring the night sky.

Seio is my best friend.

Yusei is my best friend.

Fuyoshi-kun, have you finished today's homework yet?

Looking up at the heavenly bodies, I feel calm.

As an astronomer, he is dedicated to the study of binary stars.