If someone was observing the Earth from 65 million light years away would they see the Jurrasic period now?

Question

Is that what they mean when they say looking furthur into space is like looking into the past?

Answer 1

They would be looking at "fossilized light". If it were possible to build a telescope powerful enough, the observer would actually see dinosaurs.

Answer 2

Yes, but they light would be too shifted and diffuse to actually see any objects.

Answer 3

since you ask you must not know, i don't know either and i am pretty sure they do not know. it's like pouring water into a cup with a hole in it and everybody guessing when it will stay full.

Answer 4

yes, because that place is sooo faar awaaay that even light takes millions of years to reach our eyes. Think how fast light can go, for example, from a lamp to our eyes, the moment you flick the switch. Pretty fast right? Light is the fastest thing in the universe, so that place would be pretty far. Everytime you are look at the stars, you are looking into the past.

For example, you see stars as they were million or billions of years ago. In real time, that star might have already exploded and disappeared. If you see a nova (nova is an explosion that a star makes when it dies), that nova probably occured a long time ago.

Answer 5

Wow, never thought about that but indeed sceintificaly its so very true. Once again thanks for such a beautiful imagination.

Keep thinking, and keep asking.

Regards

Vinay

Answer 6

No, they would be observing the end of the Cretaceous period. The Jurassic period ended about 145 million years ago.

But more to your point. Your hypothetical observer looking at the Earth from a distance of 65 million light years away would be seeing light that left the Earth (or more appropriately the Sun) 65 million years ago. In a sense they would be 'looking back in time'. They would need one super duper telescope to locate something as small as the Earth in a vast sea of stars the size of the Milky Way from such distance. With a telescope of such resolution, I am sure they would find more interesting things to look at.

Answer 7

Pretty good question, unfortunately i cant answer....

Answer 8

You are correct. If they could resolve an image over that incredible distance, that is what they would see, since the light would have taken 65 million years to travel to their location. This is assuming that both they and we stayed relatively stationary compared to the other for 65 million years - an unlikely possibility.

With a decent backyard telescope, you can easily see galaxies that are that far away on any clear night in Spring or early Summer.

Answer 9

yep!!!you're right .

Answer 10

yes, and yes.