Scientists have announced what they believe to be the discovery of “a frozen object 4.4 billion miles from Earth that appears to be more than half the size of Pluto and larger than the planet’s moon,” the largest discovery within our solar system since Pluto itself in 1930. The “planetoid,” “dubbed 2004 DW [they’ll need a better name], lies at the outer fringes of the Kuiper Belt, a swarm of frozen rock and ice beyond the orbit of Neptune.”