3 ms·
Yes, after billions of years you would move outside of the sight horizon of the long-lived observer on earth and disappear from view. For you, the traveler, thi
by scientator 2y ago
Yes, after billions of years you would move outside of the sight horizon of the long-lived observer on earth and disappear from view. For you, the traveler, this would happen in mere minutes. But you wouldn't have crossed the universe in that time because the edge of the visible universe is constantly expanding away from us faster than we can travel to catch up with it. Even if we travel at the speed of light.
- baal80spam 2y agoI remember reading several years ago that there are celestial bodies that we will NEVER be able to see precisely because of this.
- S04dKHzrKT 2y agoLawrence Krauss has given a talk that mentions something similar. He says that we live in a good time because we can still see "everything" around us. At some point in the far future, any observers won't be able to determine many things about the universe because the "stuff" in it will be too far away to observe. https://youtube.com/watch?v=7ImvlS8PLIo https://youtube.com/watch?v=7ImvlS8PLIo @ 50:57
- chongli 2y agoEven wilder to me is that one day, anyone living in the Milky Way will look up at the sky and be unable to see any other galaxies. If it weren’t for archaeological evidence they would never have any way of knowing about the existence of those other galaxies.