New research shatters long-held beliefs about asteroid Vesta

For decades, scientists believed Vesta, one of the largest objects in our solar system's asteroid belt, wasn't just an asteroid and eventually concluded it was more like a planet with a crust, mantle and core. Now, new research flips this notion on its head. Astronomers reveals Vesta doesn't have a core. These findings startled researchers who, until that point, assumed Vesta was a protoplanet that never grew to a full planet.