Home›Categories›ConceptsCategoriesConceptsCitation FormatsGeneral ReferenceGeneral Reference Citation TextSpace and Astronomy Atlas. "Concepts." Accessed August 30, 2026. https://space.interactiveatlas.org/categories/concepts.Copy General ReferenceAPA StyleAPA Style Citation TextSpace and Astronomy Atlas. (n.d.). Concepts. Retrieved August 30, 2026, from https://space.interactiveatlas.org/categories/conceptsCopy APA StyleBibTeXBibTeX Citation Text@misc{spaceandastronomyatlas-concepts, author = {Space and Astronomy Atlas}, title = {Concepts}, year = {2026}, url = {https://space.interactiveatlas.org/categories/concepts}, note = {Accessed August 30, 2026} }Copy BibTeXReference and ClassificationDevelopingThe foundational ideas of spaceflight and cosmology that recur across this atlas's other subjects: orbital mechanics, escape velocity and the expanding universe among them.Cross-Tradition ConnectionsSourcesComments (0)Reader Challenges (0 open reader challenges)Cross-Tradition ConnectionsContainsAerobraking, Concepts Well-attested Big Bang Theory, Concepts Well-attested Cosmic Inflation, Concepts Well-attested Cosmic Microwave Background, Concepts Well-attested Cosmological Constant, Concepts Well-attested Dark Energy, Concepts Well-attested Dark Matter, Concepts Well-attested Delta-v, Concepts Well-attested Drake Equation, Concepts Well-attested Dyson Sphere, Concepts Well-attested Escape Velocity, Concepts Well-attested Exoplanet, Concepts Well-attested Fermi Paradox, Concepts Well-attested Geostationary Orbit, Concepts Well-attested Gravity Assist, Concepts Well-attested Great Filter, Concepts Well-attested Habitable Zone, Concepts Well-attested Heliocentrism, Concepts Well-attested Hohmann Transfer Orbit, Concepts Well-attested Kessler Syndrome, Concepts Well-attested Lagrange Points, Concepts Well-attested Olbers' Paradox, Concepts Well-attested Orbital Eccentricity, Concepts Well-attested Orbital Inclination, Concepts Well-attested Orbital Mechanics, Concepts Well-attested Redshift, Concepts Well-attested Roche Limit, Concepts Well-attested Sphere of Influence, Concepts Well-attested Tsiolkovsky Rocket Equation, Concepts Well-attested Van Allen Radiation Belts, Concepts Well-attested Von Neumann Probe, Concepts Well-attested SourcesEncyclopedia Britannica: Space ExplorationEncyclopedia Britannica, Inc.Comments (0)No comments yet. Be the first to share a thought.Sign in to join the discussion.Reader Challenges (0 open reader challenges)No disputes yet. Spotted an error or a better source? Open the first one.Sign in to dispute this or suggest a correction.View At A Past YearThe atlas records no dated fact of its own for this entry, so there is no other year to choose.Show This Year