Answer:
They are practicing what? You didn't finish writing out your question.
Explanation:
Answer:
Astronomy is the study of everything in the universe beyond Earth's atmosphere. That includes objects we can see with our naked eyes, like the Sun , the Moon , the planets, and the stars . It also includes objects we can only see with telescopes or other instruments, like faraway galaxies and tiny particles.
Explanation:
The answer is black holes. I hope this helps
