The Last Supernova We've Ever Seen Was Kepler's in 1604.

In Europe around this time, most people thought that the cosmos beyond the moon and the planets couldn't change. Tiko Brahe noted one in 1572 in the sky and took a lot of great data. He realized that this thing remains stationary from night to night. It doesn't change its parallax. And so it has to be really, really far away. But then the last one that we've ever seen coming from our galaxy was Kepler. He saw one in 1604. We are seeing supernova from all over the universe because they are so bright that we can also see them from other galaxies. But the one we saw in 1604 was the last one we've ever