The correct number is 3.7 billion miles ... the solar system's smallest planet. Pluto was discovered in 1930 by Clyde ...

Now, four small planets have been found orbiting the star. Teams in America and Europe achieved this challenging detection by exploiting precision instruments on the world's largest telescopes.

Last year, astronomers announced that a planet orbits Barnard’s star. Now, researchers have confirmed the existence of three more.

Now European Southern Observatory (ESO) thinks one of the objects floating along the main belt might be the smallest ... a third detail that puts Hygiea in the running for a dwarf planet ...