If an Alien, 65 million light years away is looking at us through a telescope right now, he will be looking at dinosaurs.
Dinosaurs existed on our planet some 60-65 million years ago. So if light and sight behave as I explained to you above, then theoretically, an alien 65 million light-years away should be able to see dinosaurs on Earth. The light that bounced off the dinosaurs 65 million years ago will reach this far-off planet right now, enabling aliens to see them. So, theoretically, the answer is yes. But practically, the truth is a lot more complicated.
An object is visible to us when it is illuminated and then reflected and reaches our eyes. The light that was reflected from the earth 60 million years ago must have been coming from the earth. And since dinosaurs lived on the earth 60 million years ago, this light must have been reflected from the dinosaurs. Will come…