NASA is giving the heads up that the retired Reuven Ramaty High Energy Solar Spectroscopic Imager spacecraft, or RHESSI, will drop to Earth today or tomorrow after over two decades in orbit. Here’s the problem: it could actually strike a populated area. What are the odds it could hit someone? NASA says “The risk of harm coming to anyone on Earth is low — approximately 1 in 2,467.” Those are still better odds than the lottery, so keep your eyes to the sky. When will it drop? It’ll get into the atmosphere around 9:30 eastern tonight…plus or minus 16 hours.