We all have plenty of things to worry about and be frightened by in the course of a given day. Paying the bills, getting to work on time, making sure we don't step in front of a bus while texting. Apparently, though, researchers at Penn State University
think we could all use one more thing to have anxiety over: The Earth will eventually be swallowed by our own slowly dying sun, just as the red giant star BD+48 740 did to one of its planets
. It's the first time that astronomers have been able to observe, in some way, the consumption of a planet by its aging star
. Sure, that fate is probably 5 billion years in the future for the Earth, when we'll all be long in the ground, but knowing it certainly doesn't make us sleep any more soundly right now.