Unexplainable is Vox's new podcast. This week, we answer your questions about the world around us. If you have a question that you want unexplained, email us at unexplained@vox.com. We'll be back next week with our first ever mailbag episode.
This week, we tackle three listener questions — on sleepwalking, deja vu, and Earth’s magnetic field. Next time, we could be (not) answering yours. Email us at unexplainable@vox.com, or fill out this form.