Q
- Q-type asteroidQ-type asteroids are relatively uncommon inner-belt asteroids with a strong, broad 1 micro
- Quadrans MuralisFormer constellation
- Quadrupole magnetQuadrupole magnets, abbreviated as Q-magnets, consist of groups of four magnets laid out s
- Quantum cosmologyAttempts to develop a quantum mechanical theory of cosmology
- QuaoarRinged dwarf planet in the Kuiper belt
- Quark epochPeriod in the evolution of the early universe
- Quark starCompact exotic star which forms matter consisting mostly of quarks
- QuasarActive galactic nucleus (AGN) containing a supermassive black hole
- Quenching (astronomy)In astronomy, quenching is the process in which star formation shuts down in a galaxy. A g
- Queqiao-1Chinese lunar communications satellite
- Quinlan MountainsThe Quinlan Mountains is a mountain range in the U.S. state of Arizona. Its highest point
- Quintessence (physics)Hypothetical fundamental force