Welcome to our space facts category, an online learning resource where you can learn about space. This category is perfect for students, teachers, parents, and anyone wanting to learn about outer space and everything in it. We’re providing you with one of the largest collections of space facts, data, and information available on the internet. All the space facts, stats, and data published on our website have been thoroughly researched and validated. However, no process is perfect, if you discover any inaccuracies in our facts about space, please report it to us.
You can access all our space related topics using the below dropdown menu or by selecting a topic from the list underneath the dropdown menu. This category contains space related topics, such as asteroids, black holes, comets, galaxies, and stars. Many of these topics have additional sub-topics when necessary. For example, our galaxy topic has several sub-topics, such as the Milky Way galaxy, Andromeda Galaxy and the Black Eye Galaxy. If we don’t currently cover the space topic you’re looking for, contact us and request it.
Select a Space Facts Section
Alpha Centauri Facts
This section is all about Alpha Centauri. Discover facts about Alpha Centauri, the closest extrasolar system to planet Earth.
This section is all about asteroids. Discover facts about asteroids, small astronomical bodies found throughout the Universe.
This section is all about astronauts. Discover facts about astronauts, the brave men and women who travel into space to explore it.
Big Bang Facts
This section is all about the Big Bang. Discover facts about the Big Bang, the leading theory of the beginning of the Universe.
Black Hole Facts
This section is all about the black holes. Discover facts about black holes, a region of space that contains a lot of mass in a small area.
This section is all about comets. Discover facts about comets, small astronomical bodies found throughout the Universe.
Dark Energy Facts
This section is all about Dark Energy. Discover facts about dark energy, a mysterious energy form that affects the entire Universe.
Dark Matter Facts
This section is all about Dark Matter. Discovered facts about dark matter, a hypothetical form of matter that makes up most of our Universe.
This section is all about Exoplanet. Discover facts about exoplanets, rocky or gas bodies orbiting stars outside of our Solar System.
This section is all about galaxies. Discover facts about galaxies, large gravitationally bound systems found throughout the Universe.
Hubble Space Telescope Facts
This section is all about the Hubble Space Telescope. Discover facts about the Hubble Space Telescope and its benefits in space exploration.
This section is all about hypernovas. Discover facts about hypernoves, the most powerful type of supernova explosion.
James Webb Space Telescope Facts
This section is all about the James Webb Space Telescope. Discover facts about the most advanced space telescope in use.
This section is all about magnetars. Discover facts about magnetars, a type of neutron star with a very power magnetic field.
This section is all about meteors. Discover facts about meteors, the astronomical objects that can light up our night sky.
This section is all about meteorites. Discover facts about meteorites, pieces of space debris that impacts the Earth's surface.
This section is all about the multiverse. Discover facts about the multiverse, the theoretical idea that there are multiple Universes.
This section is all about NASA. Discover facts about the United States National Aeronautics and Space Administration.
This section is all about nebulae. Discover facts about nebulae, large and beautiful galactic bodies found throughout the Universe.
Outer Space Facts
This section is all about outer space. Discover facts about outer space and learn about all the things that exist beyond Earth.
This section is all about planets. Discover facts about planets, large astronomical objects that are within our Solar System.
This section is all about satellites. Discover facts about satellites, space technology used to explore space, our planet, and handle communications.
Solar Flare Facts
This section is all about solar flares. Discover facts about solar flares, a powerful ejection of energy from our Sun and other stars.
Space Exploration Facts
This section is all about space exploration. Discover facts about space exploration and what humans have achieved in space.
Space Probe Facts
This section is all about space probes. Discover facts about space probes, unmanned space technology used to explore space.
Space Race Facts
This section is all about the space race. Discover facts about the space race between the United States and the Soviet Union.
Space Travel Facts
This section is all about space travel. Discover facts about space travel, the way humans travel through and explore the Universe.
Star Cluster Facts
This section is all about star clusters. Discover facts about star clusters, a large group of stars relatively close together in space.
This section is all about stars. Discover facts about stars, massive and hot astronomical objects found throughout the Universe.
This section is all about supernovas. Discover facts about supernovas, a gigantic explosive caused by the death of a massive star.
This section is all about the Universe. Discover facts about the Universe, the entire collection all space and time around us.
This section is all about wormholes. Discover facts about wormholes, a theoretical structure connecting different points in spacetime.
Outer space, or simply space, is the expanse between all celestial bodies, including Earth, in our Universe. There is an enormous amount of space in our Universe. The Universe itself has a diameter of 93 billion light-years, around 125 billion galaxies, an estimated 200 billion trillion stars (200 sextillion), and countless celestial bodies. Even with all that matter in our Universe, almost the entire universe is made up of space. Don’t think of space as empty space, it is not completely void of matter. Outer space is almost a near perfect vacuum with a very low density of particles, such as the plasma of helium and hydrogen.
Outer space may sound empty, but it contains tons of different celestial bodies and objects, many we haven’t even discovered yet. A few of the celestial bodies found in space are black holes, galaxies, stars, and planets. A black hole is a super dense region of space and time that has such a strong gravitation nothing can escape it, not event light. A galaxy is a gravitational bound system of stars, rotating around a supermassive black hole. A star is a bright sphere of plasma being held together by gravity. A planet is collection of remnants from the formation of a star and a planet can be a solid body or a gas body.