Astronomy, cosmology, astrophysics and other space sciences are fascinating to academics and amateurs alike. For millenia, humans have looked to the heavens and assigned great meaning to astronomical events. Modern science allows us to observe the universe objectively, and modern technology allows us to see .
The JRank.org Space section covers a broad spectrum of space science topics. The history of space exploration is covered in detail, from the Apollo and Sputnik projects to the Mars rover, the International Space Station, and the Hubble Space Telescope. Scientific concepts like black holes, space-time, string theory and the big bang are explained as well.
This website also includes more than 300 biographies of famous astronauts and scientists, including Albert Einstein and Neil Armstrong.
Abell clusters, acceleration of the Universe, acoustic peaks, active galactic nuclei (AGN), adiabatic perturbations, age of the Universe, AGN, Aitoff projection, ALMA (Atacama Large Millimetre Array), alternative cosmologies, angular-diameter distance, anisotropies, anthropic principle, anti-matter, anti-particles, APM galaxy survey, arXiv (pron. Archive, despite the spelling), astroparticle physics, astro-ph (pron. astro-pee-aitch), Atacama Large Millimetre Array, axions, baryogenesis, baryon oscillations, baryons, baryon-to-photon ratio…
bulk motions, causality, CDM, CDM model, Cepheid variables, CfA Redshift Survey, Chandra satellite, closed Universe, cluster baryon fraction, clustering, clusters of galaxies, CMB, cmbfast, COBE satellite, coincidence problem, cold dark matter (CDM), cold dark matter model (CDM model), Coma cluster, Commonly used symbols, comoving coordinates, compactification, concordance cosmology, cone plot, confidence limits, Copernican principle, correlation function, Cosmic Background Explorer satellite (COBE) (pron. koh-bee), cosmic dipole, cosmic infrared background (CIRB)…
degeneracy, Degree Angular Scale Interferometer (DASI), density, density parameter, density perturbations, de Sitter space, distance, distance estimates, distance ladder, distance modulus, Doppler effect, dust, dwarf galaxies, early Universe, Arthur Eddington Biography, e-foldings, Albert Einstein Biography, Einstein's equation, Einstein–de Sitter Universe, ekpyrotic Universe, electromagnetic radiation, electromagnetic spectrum, electrons, electro-weak phase transition, elliptical galaxies, K correction…
N-body simulations, y-parameter, energy density, equation of state, event horizon, expanding universe, extinction, extra dimensions, extra-Galactic background light (EBL), Faber-Jackson relation, feedback, fermions, flatness problem, fluid equation, Fourier transform, free streaming, Alexander Friedmann Biography, Friedmann equation, fundamental forces, future of the Universe, galactic halo, galaxies, galaxy bias…
galaxy classification, galaxy clusters, galaxy evolution, galaxy formation, galaxy groups, galaxy rotation curves, galaxy surveys, George Gamow Biography, Gaussian, General relativistic phenomena, general relativity, geometry of the Universe, globular clusters, Glossary, gluons, grand unification, gravitational field, gravitational instability, gravitational lensing, gravitational potential, gravitational waves, gravitons, gravity, Gunn–Peterson effect, hadrons, halo, halo occupation distribution, Hammer–Aitoff projection, Harrison–Zel'dovich spectrum, hierarchical structure formation, Higgs boson, homogeneity, horizon distance, horizon entry and exit…
integrated Sachs–Wolfe (ISW) effect, intergalactic medium (IGM), intra-cluster medium (ICM), ionization history, IRAS, irregular galaxies, isocurvature perturbations, isotropy, James Webb Space Telescope (JWST), Jordan–Brans–Dicke gravity theory, JWST, Kaluza–Klein theories, Keck Observatory, large-scale structure, last-scattering surface, leptons, Lick galaxy catalogue, light cone, likelihood, linear density perturbations, linear perturbation theory, Local Group, LOFAR, look-back time, low surface brightness (LSB) galaxies, luminosity density, luminosity distance…
Messier catalogue, metallicity, metric, microlensing, microwave, Milky Way, model selection, modified Newtonian dynamics (MOND), Mollweide projection, MOND, monopole problem, Monte Carlo, M-theory, multiverse, nebulae, neutralino, neutrinos, neutrons, Nobel Prize, non-Gaussianity, non-singular cosmologies, nucleosynthesis, numerical simulations, observable Universe, observational selection effects, Olbers' paradox, open Universe, optical depth, Overview: the hot big bang cosmology, pairwise velocity dispersion…
parameter estimation, particle accelerators, particle astrophysics, particle cosmology, particle horizon, particle physics units, peculiar velocities, perfect fluid, perturbations, phantom dark energy, phase transitions, photometric redshift, photons, pixelization, Planck length, Planck mass, Planck satellite, Planck scale, Planck time, polarization, potential, power spectrum, preheating, pressure, Press–Schechter theory, primordial black holes (PBHs), proper coordinates, protons, quantum cosmology, quantum gravity, quantum mechanics, quarks, quark–hadron phase transition, quasar absorption systems, quasars…
scalar perturbations, scale factor, scale-invariant spectrum, SCUBA, selection function, semi-analytic galaxy formation, Shapley supercluster, significance, Silk damping, simulations, singularities, SKA, Sloan Digital Sky Survey (SDSS), smoothed particle hydrodynamics (SPH), space-time, spatial curvature, special relativity, spectral energy distribution (SED), spectral index, spectroscopy, spectrum, speed of light, spiral galaxies, Spitzer Space Telescope, Square Kilometre Array (SKA), standard candles, standard cosmological model, standard model of particle physics…
supermassive black holes (SMBHs), supernovae, supernova surveys, superstring theory, supersymmetry and supergravity, symmetry breaking, SZ effect, temperature–time relation, tensor perturbations, thermal equilibrium, time dilation, top-down structure formation, topological defects, topology of the Universe, Tully-Fisher relation, two degree field galaxy redshift survey (2dFGRS), two degree field quasar redshift survey (2QZ), Two Micron All Sky Survey (2MASS), ultra‐violet (UV), Universe, vacuum energy, varying fundamental constants, velocity dispersion, Very Large Telescope (VLT)…