Well astronomy is very much time travel in the search for knowledge. There's all this stuff going on/has been going on out in the multiverse, but it is just so

Well astronomy is very much time travel in the search for knowledge. There's all this stuff going on/has been going on out in the multiverse, but it is just so damn far away most of the time. Some people figured out that a star visited our solar neighborhood only 70K y/a and at that time there were proto-humans on the cusp of grasping a better understanding of themselves and eventually the universe. It puts into perspective our fragile existence.