Recent content by Dnj23

Let's say there is a train moving at 50 mph on the moon on a flat surface (say it's a perfect vacuum) and you are on the last cart where you throw a ball out the rear in the opposite direction the train is moving (directly away from it, parallel to the ground). The ball thrown is also...

Ok

I'm not asking traveling at the the speed of light with any craft. Does light itself from Andromeda get here to Earth due to time dilation?

Ok. I said light, not a ship.

Well, yes 😀

And How long does light take to reach us from Andromeda, from Andromeda light perspective?

Hi, I recently learned that if you can travel at the speed of light, or nearly, you can reach the Andromeda Galaxy within 30 years, due to time dilation and bypassing 2.5 million years on Earth. Is this true?

If anyone had a nice tree in the foreground near sunset, they aren't looking at anything what I'm mentioning.

I don't understand your response. "So, here's another picture which shows the Andromeda galaxy as it would appear to the naked eye in a not very dark sky -"

Let's just say.

I'm done with this thread.

In terms of significant brightness to make it noticeable.

Andromeda would be synonymous with the Moon, Venus, Jupiter, Sirius, etc.

What else can you guys see? Neptune white briefs of clouds?

Ok. You can detect differences in light, but you can't actually see the phases.