Astronomers always work in the past; because light takes time to move from one place to another, they see things as they were, not as they are. – Neale E. Howard, The Telescope Handbook and Star Atlas, 1967

Astronomers always work in the past; because light takes time to move from one place to another, they see things as they were, not as they are. – Neale E. Howard, The Telescope Handbook and Star Atlas, 1967