Astronomers investigate everything between Earth and the farthest reaches of the Universe. If instruments can collect it, Astronomers will analyze it. While professionals use expensive cutting-edge technology, this is still a field where amateurs with simple tools discover new things all the time.
A few sample challenges:
so that’s how keys work.
YOU HAVE NO IDEA HOW HAPPY I AM TO FINALLY SEE HOW THIS WORKS.
I REFUSE TO BELIEVE UNTIL SOMEONE SHOWS ME HOW PICK IT.