Scientists have discovered a strange “liquid planet” covered in molten magma, challenging known planet types. Could more hidden worlds like this exist, reshaping how we search for habitable planets? Scientists have discovered a strange “liquid planet” covered in molten magma, challenging known planet types. Could more hidden worlds like this exist, reshaping how we search for habitable planets? An artist’s impression of L 98-59 d. (Image: Mark A... [413 chars]