“Telescope can see into the past. How can you see into the past? So light travels at a speed, so if something is 13 billion light-years away, what we see when we look at it happened 13 billion years ago because that's how long it took the light to get to us. Similarly, our sun is like 8 light-minutes away from us so we have no idea what is currently happening on the sun. All of our sun-related news is at least 8 minutes old. Which is why the sun needs a twitter.”