60 Things in Space

John Spacey, updated on September 29, 2024

Space, or outer space, is the entire universe that exists beyond the atmosphere of the planet Earth. The observable universe is about 93 billion light-years in diameter. Beyond this, we don't know what is out there. Humans have limited understanding of space whereby many apparent objects in space have been known to us for less than two centuries and our knowledge of them is based on limited data. The following are things that are known to exist or thought to exist in space.

Asteroid Belts	Asteroids
Black Dwarfs	Black Holes
Brown Dwarfs	Comets
Cosmic Rays	Damocloids
Dark Energy	Dark Matter
Dwarf Planets	Electromagnetic Radiation
Galaxies	Galaxy Clusters
Giant Planets	Humans
Intergalactic Space	Interplanetary Medium
Interstellar Cloud	Interstellar Medium
Interstellar Space	Magnetars
Magnetic Fields	Meteoroids
Moons	Natural Satellites
Nebulae	Neutrinos
Neutron Stars	Planetary Systems
Planetesimals	Planets
Plasma	Primordial Black Holes
Pulsars	Quasars
Radio Signals	Ring Systems
Rogue Planets	Satellites
Saturn's Rings	Solar Systems
Solar Wind	Space Dust
Space Junk	Space Stations
Spacecraft	Star Clusters
Stars	Stellar Wind
Superclusters	Supergiant Stars
Terrestrial Planet	The Heliosphere
The Sun	Trojans
Vacuum	Voyager Probes
Warm–Hot Intergalactic Medium	White Dwarfs

Damocloids are astronomical objects that share characteristics with both asteroids and comets. They have similar orbits to periodic comets but without having a tail.