Scientists occasionally refer to Charon and Pluto as a double dwarf planet system. Up close, Charon is striking. The satellite is covered in crevices that scientists think may harbor a liquid ocean.

It's got a satellite system ... its proper place is with bitch-ass dwarf planets like Quaoar, Sedna, and Orcus. Pluto's demotion was partially caused by us getting better at spotting planets ...

Ganymede, Jupiter's largest moon and the solar system's largest, is bigger than Mercury and the dwarf planet Pluto, with a diameter of 5,268 kilometers.

The dwarf planet was there ... by New Horizons is that of Pluto’s "heart" feature. The heart-shaped glacier, nicknamed Sputnik for Earth’s first human-made satellite, is nearly 600 miles ...

The Moon is a natural satellite that orbits planet Earth ... The Earth has just one moon - the Moon. Pluto is a dwarf planet. As the name suggests, a dwarf planet is smaller than a planet.

The best known of these is Pluto, an ice dwarf that orbits far from ... these gravitational forces hold moons and satellites in orbit around planets. In addition to planets and moons, many ...

For one reason or another, some people are still upset about Pluto's demotion from planet to dwarf planet. This demotion, by the way, occurred all the way back in 2006. So, what does famed ...

Why was Pluto reclassified as a dwarf planet? One might think that it’s purely a matter of size. Mercury, the smallest of the ...

A blue atmosphere, smooth areas, and youthful mountain ranges - this dwarf planet is full of surprises. When NASA's New Horizons probe flew past Pluto in July 2015, the images it returned astonished ...

Although Seeing in the Dark doesn't directly discuss Pluto, it does celebrate the joy of observing planets. Viewers who watch the show may wonder what happened to Pluto in 2006 and whether any of ...

An curved arrow pointing right. NASA's New Horizons spacecraft took us to Pluto for the first time in July 2015. Scientists are astonished by the incredible features they've observed on the dwarf ...

The newly-spotted dwarf planet joins a cohort of other small worlds in that part of space, including Pluto. Together, dwarf planets can help scientists learn a lot about how the solar system ...