Interesting facts about space, galaxies, planets, moons and other solar system objects. Explore the universe through interesting diagrams, photos and more!

Facts about the Planets Mercury’s craters are named after famous artists, musicians and authors. Venus is the hottest planet in the solar system. Earth’s atmosphere protects us from meteoroids and …

Universe Facts The universe is the sum total of all the planetary systems, stars, nebulae, galaxies, galactic clusters, black holes, and the atoms and molecules that make all these objects. It also …

Solar System Facts The solar system was formed approximately 4.6 billion years ago by the collapse of a giant molecular cloud. The mass at its centre collected to form the Sun and a flat disk of dust …

Galaxy Facts A galaxy is a massive, gravitationally bound system that consists of stars, stellar objects (such as brown dwarfs and neutron stars), nebulae, an interstellar medium of gas and dust, black …

Jul 30, 2012 · A collection of cool facts about the Sun and all the planets in our solar system (sorry Pluto). The Sun makes up 99.86% of the Solar System’s mass. Mercury is named after the Roman …

Sun Facts The Sun is the star at the centre of our solar system. It is an almost perfect sphere of super-hot gases whose gravity holds the solar system together. The energy produced by the Sun is …

Saturn Facts Best known for its fabulous ring system, Saturn is the sixth planet from the Sun and the second largest in our solar system. Like Jupiter, Saturn is a gas giant and is composed of similar …

Gas Giant Facts Gas giants are large planets that contain more than 10 times the mass of Earth, they are also known as the Jovian or Outer Planets. Their compositions are mostly gases, such as …

There are at least 338 moons of the various planets, dwarf planets in the solar system. The planets Mercury and Venus do not have any