Astronomer David Field of the University of Aarhus says, "The fainter the galaxy, the more distant it is. And given that light travels at a finite speed, faint galaxies are also the oldest."
But why bother? Given that the night sky is full of bright galaxies, why do astronomers build telescopes manufactured to a billionth of a metre accuracy, just to see faint ones? The answer is about looking back in time.
A surgeon once accidentally amputated an assistant's fingers along with a patient's leg. The patient and the assistant died of sepsis, and a spectator reportedly fainted and died, resulting in a procedure with 300% mortality.
A surgeon once accidentally amputated an assistant's fingers along with a patient's leg. The patient and the assistant died of sepsis, and a spectator reportedly fainted and died, resulting in a procedure with 300% mortality.
A surgeon once accidentally amputated an assistant's fingers along with a patient's leg. The patient and the assistant died of sepsis, and a spectator reportedly fainted and died, resulting in a procedure with 300% mortality.
A surgeon once accidentally amputated an assistant's fingers along with a patient's leg. The patient and the assistant died of sepsis, and a spectator reportedly fainted and died, resulting in a procedure with 300% mortality.
"The future has several names. For the weak, it is the impossible. For the fainthearted, it is the unknown. For the thoughtful and valiant, it is the ideal."