Comets, Kuiper Belt, Ganymede, Callisto, Ganymede, Oort Cloud, Kuiper Belt, Oort Cloud, Gan

A comet is a small icy celestial body that orbits around the sun. It has a nucleus (solid, frozen ice), a gaseous coma (water vapor, CO2 and other gases) and a long tail. The International Astronomical Union (IAU) defines a planet as a Sun-orbiting astronomical body that has undergone the rounding process to achieve hydrostatic…

The Moon Phases Rap

The Moon changes shape each night as it moves through its 29.5 day orbit around Earth. These changes are called phases, and they can be confusing for some people to figure out. Here’s a handy mnemonic that can help you remember the order of the phases. Try it out on your next Moon Phases quiz!…