Space and Astronomy Atlas

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The universe & how we observe it

Every discovery, one connected map of the universe.

Space and Astronomy Atlas is a cross-referenced encyclopedia of the universe, from the solar system and stars to galaxies, cosmology, and the missions and instruments that observe them. Search any theory, object, or scientist and follow its threads through every field that builds on it.

Browse the DirectoryCompare disciplines
12Systems244Entries
1,221Sourced facts

Browse by Field

Every section of the atlas.

Celestial Objects

45
67P/Churyumov-Gerasimenko
3 links
Andromeda Galaxy
1 link
Asteroid Belt
1 link
Betelgeuse
1 link
Callisto
2 links
Ceres
3 links
Charon
2 links
Comet Hale-Bopp
2 links
Comet NEOWISE
2 links
Crab Nebula
1 link
Earth
2 links
Enceladus
2 links
Eris
3 links
Europa
2 links
Ganymede
2 links
Halley's Comet
1 link
Haumea
2 links
Iapetus
2 links
Io
2 links
Jupiter
5 links
Kuiper Belt
1 link
Makemake
2 links
Mars
3 links
Mercury
1 link
Mimas
2 links
Miranda
2 links
Neptune
3 links
Oort Cloud
1 link
Orion Nebula
1 link
'Oumuamua
2 links
Pallas
2 links
Pluto
5 links
Polaris
1 link
Proxima Centauri
1 link
Sagittarius A*
5 links
Saturn
6 links
Sirius
1 link
Sun
11 links
The Moon
2 links
Titan
4 links
Titania
2 links
Triton
2 links
Uranus
4 links
Venus
1 link
Vesta
2 links

Missions and Programs

26
Apollo 11
5 links
Apollo 13
4 links
Apollo Program
8 links
Apollo-Soyuz Test Project
4 links
Artemis Program
2 links
Cassini-Huygens Mission
6 links
Chandrayaan Programme
2 links
Chang'e Program
2 links
Emirates Mars Mission
2 links
Gemini Program
3 links
Luna Program
2 links
Mercury Program
7 links
Mir
2 links
New Horizons Mission
4 links
Pioneer Program
3 links
Ranger Program
2 links
Salyut Program
2 links
Skylab
2 links
Space Shuttle Program
6 links
Sputnik Program
2 links
Tiangong Program
2 links
Venera Program
2 links
Viking Program
3 links
Vostok 1
4 links
Vostok 6
3 links
Voyager Program
4 links

Spacecraft

26
Apollo Lunar Module
2 links
Atlas V
2 links
Canadarm
2 links
Cassini
5 links
CST-100 Starliner
2 links
Curiosity
3 links
Cygnus
2 links
Electron
2 links
Falcon 9
2 links
Hayabusa2
2 links
International Space Station
7 links
Juno
2 links
Mariner 4
2 links
New Horizons
4 links
New Shepard
2 links
OSIRIS-REx
2 links
Parker Solar Probe
2 links
Perseverance
3 links
Pioneer 10
4 links
Rosetta
3 links
Saturn V
3 links
Soyuz
2 links
Sputnik 1
3 links
Viking 1
3 links
Voyager 1
2 links
Voyager 2
5 links

Space Agencies and Companies

22
Arianespace
1 link
Blue Origin
2 links
Boeing
2 links
Canadian Space Agency
4 links
China National Space Administration
3 links
CNES
1 link
DLR
1 link
European Space Agency
5 links
Israel Space Agency
1 link
ISRO
2 links
Italian Space Agency
2 links
JAXA
3 links
Korea Aerospace Research Institute
1 link
Lockheed Martin
3 links
NASA
51 links
Northrop Grumman
3 links
Rocket Lab
2 links
Roscosmos
16 links
SpaceX
2 links
UAE Space Agency
3 links
UK Space Agency
1 link
United Launch Alliance
2 links

Astronauts and Cosmonauts

15
Alan Shepard
3 links
Alexei Leonov
2 links
Buzz Aldrin
3 links
Chris Hadfield
3 links
Eileen Collins
2 links
Gene Cernan
2 links
Gus Grissom
3 links
Jim Lovell
4 links
John Glenn
4 links
Mae Jemison
2 links
Michael Collins
2 links
Neil Armstrong
3 links
Sally Ride
2 links
Valentina Tereshkova
3 links
Yuri Gagarin
3 links

Pioneers

22
Christopher Kraft
3 links
Dorothy Vaughan
3 links
Gene Kranz
2 links
George Mueller
3 links
Hermann Oberth
2 links
James Van Allen
2 links
James Webb
3 links
Johannes Kepler
3 links
John Houbolt
4 links
Katherine Johnson
5 links
Konstantin Tsiolkovsky
3 links
Margaret Hamilton
3 links
Mary Golda Ross
2 links
Mary Jackson
3 links
Maxime Faget
3 links
Poppy Northcutt
2 links
Qian Xuesen
1 link
Robert Goddard
3 links
Sergei Korolev
4 links
Valentin Glushko
2 links
Wernher von Braun
5 links
Yuri Kondratyuk
5 links

Observatories and Instruments

17
Arecibo Observatory
1 link
Atacama Large Millimeter Array
2 links
Chandra X-ray Observatory
2 links
Event Horizon Telescope
2 links
Fermi Gamma-ray Space Telescope
2 links
Gaia
2 links
Hubble Space Telescope
2 links
James Webb Space Telescope
4 links
Kepler Space Telescope
4 links
Mauna Kea Observatories
1 link
Mount Wilson Observatory
2 links
Palomar Observatory
2 links
Spitzer Space Telescope
2 links
Vera C. Rubin Observatory
3 links
Very Large Array
1 link
Very Large Telescope
2 links
W. M. Keck Observatory
2 links

Concepts

31
Aerobraking
4 links
Big Bang Theory
10 links
Cosmic Inflation
3 links
Cosmic Microwave Background
6 links
Cosmological Constant
4 links
Dark Energy
7 links
Dark Matter
6 links
Delta-v
9 links
Drake Equation
8 links
Dyson Sphere
5 links
Escape Velocity
4 links
Exoplanet
6 links
Fermi Paradox
11 links
Geostationary Orbit
3 links
Gravity Assist
8 links
Great Filter
5 links
Habitable Zone
6 links
Heliocentrism
3 links
Hohmann Transfer Orbit
9 links
Kessler Syndrome
2 links
Lagrange Points
3 links
Olbers' Paradox
3 links
Orbital Eccentricity
4 links
Orbital Inclination
4 links
Orbital Mechanics
18 links
Redshift
6 links
Roche Limit
2 links
Sphere of Influence
4 links
Tsiolkovsky Rocket Equation
5 links
Van Allen Radiation Belts
3 links
Von Neumann Probe
4 links

What you can do here

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An Open Question

A gap nobody has closed yet, rotated daily.

Astrobiology and SETI

Why has no evidence of extraterrestrial intelligent civilizations been detected despite the high estimated probability of their existence implied by the size and age of the observable universe?

See This Question