what is Earth?
Name of the last plant from the sun
What is Neptune?
What is a supernovae?
What is the death of a big star?
What is the big bang?
What is the forming of the universe?
How old is the universe?
what is 13 billion years?
What is the universe mostly made of?
What is dark matter?
What are electrons
What are negatively charged nucleus particles of atoms?
What is the biggest nebula?
What is the Tarantula Nebula?
Biggest black hole
What is Phoenix A?
What is the biggest star
What is Stephenson 2-18?