Your house is full of space dust — it reveals the solar system’s story

Where does space dust come from? Dr Natalie Starkey explains.

Image by Geralt on under Creative Commons.

When you clean your house you are probably vacuuming up space dust. Not kidding. It is the same dust that was once part of comets and asteroids. You see that dust in the faint glow it helps create before sunrise and after sunset. As much as…