It's difficult to fathom how much bigger the Sun is than our little planet. Even though it's just an average-sized star, you could squeeze 1.3 million Earths inside it. But planets in other solar systems don't always have such a massive size difference, as detailed in an intriguing new report in the journal Science, which describes the discovery of a planet named LHS 3154b.
It orbits an M dwarf star called LHS 3154, from which it gets its name, but the planet itself is theoretically too big to orbit around its native star. Its very existence calls into question some fundamental tenets of how planets form that were taken for granted.
