Why do the planets in the Solar System orbit the Sun roughly in the same plane? 🪐 Put simply: when spheres spin, they tend to flatten out. This is also why the Earth isn't a perfect sphere, but it bulges at the equator. 🌍 A galaxy of discovery awaits! Don't miss the 2025 Christmas Lectures, supported by CGI, as space scientist Maggie Aderin-Pocock takes us on a whistle-stop tour of our universe, searching for evidence of extra-terrestrial life. Find out more: rigb.org/christmas-lectures | Roya