Free Astronomy Books

This is the updated list of astronomy books available for free download or online reading. These books and papers cover all the areas of astrophysics, cosmology, galactic and extragalactic astronomy, solar and stellar physics, celestial mechanics, planetary science, astrobiology, as well as some popular works. The books are made available free of charge to the reader by their authors or publishers. Here is a categorized directory of astronomy books. This page is updated daily.

1. Mercury
   F. Vilas, C. Chapman, M. Matthews | University of Arizona Press, Published in 1989, 794 pages
2. An Introduction into the Theory of Cosmological Structure Formation
   Christian Knobel | arXiv, Published in 2012, 102 pages
3. Astronomical Discovery
   Herbert Hall Turner | E. Arnold, Published in 1904, 225 pages
4. Astronuclear Physics: a Tale of the Atomic Nuclei in the Skies
   M. Arnould, S. Goriely | arXiv.org, Published in 2020, 100 pages
5. To See the Unseen: A History of Planetary Radar Astronomy
   Andrew J. Butrica | NASA History Division, Published in 1996, 301 pages
6. Lecture Notes on High Energy Cosmic Rays
   M. Kachelriess | arXiv.org, Published in 2008, 82 pages
7. String Cosmology
   James M. Cline | arXiv, Published in 2007, 47 pages
8. Archaeology, Anthropology, and Interstellar Communication
   Douglas A. Vakoch | NASA, Published in 2014, 330 pages
9. The Galactic Habitable Zone I. Galactic Chemical Evolution
   G. Gonzalez, D. Brownlee, P. Ward | arXiv, Published in 2001, 57 pages
10. The Search for Extraterrestrial Intelligence, SETI
    Philip Morrison, John Billingham, John Wolfe | NASA, Published in 1979, 293 pages
11. Views of the Solar System
    Calvin J. Hamilton | , Published in 2008
12. Celestial Mechanics
    J. B. Tatum | , Published in 2008
13. Astronomy of To-day
    Cecil Goodrich Julius Dolmage | Seeley and co., Published in 1910
14. Observational Probes of Cosmic Acceleration
    David H. Weinberg, et al. | arXiv, Published in 2012, 253 pages
15. Introduction to Early Universe Cosmology
    Robert H. Brandenberger | arXiv, Published in 2011, 70 pages
16. Mathematical Problems Of Radiative Equilibrium
    Eberhard Hopf | Cambridge University Press, Published in 1934, 123 pages
17. Radiative Gas Dynamics
    David Weinberg | Ohio State University, Published in 2007
18. Resources of Near-Earth Space
    J. S. Lewis, M. S. Matthews | University of Arizona Press, Published in 1993, 977 pages
19. The Beginning and the End: The Meaning of Life in a Cosmological Perspective
    Clement Vidal | arXiv, Published in 2013, 356 pages
20. Star-Gazer's Hand-Book
    Henry William Elson | Sturgis & Walton, Published in 1910, 72 pages
21. Great Astronomers
    Robert S. Ball | Isbister, Published in 1895, 392 pages
22. A Simple Guide to Backyard Astronomy
    Carol Beigel | , Published in 2008, 61 pages
23. From Disks to Planets
    Andrew N. Youdin, Scott J. Kenyon | arXiv, Published in 2012, 70 pages
24. A Guide To The Constellations
    Samuel G. Barton | McGraw-Hill, Published in 1928, 96 pages
25. Cosmology: Mankind's Grand Investigation
    Greg Bothun | Harcourt Brace College Publishers, Published in 1999, 129 pages
26. The Astrobiology Primer: An Outline of General Knowledge
    Lucas J. Mix, at al. | arXiv, Published in 2006, 79 pages
27. Primordial Magnetogenesis
    Alejandra Kandus, Kerstin E. Kunze, Christos G. Tsagas | arXiv, Published in 2011, 107 pages
28. The Solar Magnetic Field
    Sami Solanki, Bernd Inhester, Manfred Schussler | arXiv, Published in 2010, 83 pages
29. The Story of Eclipses
    George F. Chambers | S. S. McClure Co., Published in 1909, 208 pages
30. Pioneers of Science
    Oliver Lodge | Macmillan and co, Published in 1905, 421 pages
31. Lopsided Spiral Galaxies
    Chanda J. Jog, Francoise Combes | arXiv, Published in 2008, 75 pages
32. Recreations in Astronomy
    Henry White Warren | Project Gutenberg,
33. Astronomy with an Opera-glass
    Garrett Putman Serviss | D. Appleton & co., Published in 1890, 154 pages
34. Recent Developments in Gravitational Collapse and Spacetime Singularities
    Pankaj S. Joshi, Daniele Malafarina | arXiv, Published in 2012, 89 pages
35. Protoplanetary Disks and Their Evolution
    Jonathan P. Williams, Lucas A. Cieza | arXiv, Published in 2011, 65 pages
36. Planetary Science: A Lunar Perspective
    Stuart Ross Taylor | Lunar and Planetary Institute, Published in 1982
37. Spherical Astronomy
    F. Brünnow | Van Nostrand, Published in 1865, 559 pages
38. Mathematical Theories of Planetary Motions
    Otto Dziobek | The Register Pub. Co., Published in 1892, 314 pages
39. A Review of the Universe: Structures, Evolutions, Observations, and Theories
    | universe-review.ca, Published in 2009
40. Voyager 1 and 2: Atlas of Six Saturnian Satellites
    Raymond M. Batson | NASA, Published in 1984, 175 pages
41. Cosmic Rays and the Search for a Lorentz Invariance Violation
    Wolfgang Bietenholz | arXiv, Published in 2008, 81 pages
42. The Shape of the Universe
    Gerd Pommerenke | viXra, Published in 2013, 321 pages
43. Astrochemistry: The Issue of Molecular Complexity in Astrophysical Environments
    M. De Becker | arXiv, Published in 2013, 62 pages
44. Gravitational Wave Experiments and Early Universe Cosmology
    Michele Maggiore | arXiv, Published in 2000, 100 pages
45. Introduction to relativistic astrophysics and cosmology through Maple
    V. L. Kalashnikov | arXiv, Published in 2001, 124 pages
46. Lunar Stratigraphy and Sedimentology
    John Lindsay | Elsevier, Published in 1976, 311 pages
47. Atlas of Peculiar Galaxies
    Halton C. Arp | California Institute of Technology, Published in 1966, 190 pages
48. Photographs of Nebulae and Clusters
    James Edward Keeler | University of California Publications, Published in 1908
49. Habitable Planets for Man
    Stephen H. Dole | RAND Corporation, Published in 1964, 176 pages
50. The Fine-Tuning of the Universe for Intelligent Life
    Luke A. Barnes | arXiv, Published in 2011, 76 pages
51. Textbook on Practical Astronomy
    George Leonard Hosmer | Wiley, Published in 1910, 252 pages
52. The Elements of Theoretical and Descriptive Astronomy
    Charles J. White | J. Wiley, Published in 1909, 322 pages
53. Particle Physics Aspects of Modern Cosmology
    Robert H. Brandenberger | arXiv, Published in 1997, 70 pages
54. A Handbook of Descriptive and Practical Astronomy
    George F. Chambers | Oxford At The Clarendon Press, Published in 1889, 756 pages
55. To a Rocky Moon: A Geologist's History of Lunar Exploration
    Don E. Wilhelms | University of Arizona Press, Published in 1993, 524 pages
56. An Introduction to the Theory of Rotating Relativistic Stars
    Eric Gourgoulhon | arXiv, Published in 2010, 88 pages
57. Quantization in Astrophysics, Brownian Motion, and Supersymmetry
    F. Smarandache, V. Christianto | MathTiger, Published in 2007, 516 pages
58. Astronomy Notes
    Nick Strobel | astronomynotes.com, Published in 2010
59. Stellar Superfluids
    Dany Page, et al. | arXiv, Published in 2013, 88 pages
60. Dense Matter in Compact Stars
    Andreas Schmitt | arXiv, Published in 2010, 146 pages
61. Lectures on Inflation and Cosmological Perturbations
    David Langlois | arXiv, Published in 2010, 56 pages
62. Handbook of Space Astronomy and Astrophysics
    Martin V. Zombeck | Cambridge University Press, Published in 2006, 780 pages
63. A Photographic Atlas of Rock Breakdown Features in Geomorphic Environments
    Mary Bourke, Heather Viles | Planetary Science Institute, Published in 2007, 88 pages
64. Black Holes
    P.K. Townsend | arXiv, Published in 1997, 145 pages
65. Protostars and Planets
    | Rice University, Published in 2015, 422 pages
66. Introduction to Physical Astronomy
    Kenneth R. Koehler | University of Cincinnati, Published in 2010
67. The world according to the Hubble Space Telescope
    Mario Livio | arXiv.org, Published in 2008, 112 pages
68. Lectures on Black Holes, Topological Strings and Quantum Attractors
    Boris Pioline | arXiv, Published in 2007, 103 pages
69. Observing the Sky from 30S
    Roberto Mura | Wikibooks, Published in 2010, 86 pages
70. Galaxies and the Expanding Universe
    James Schombert | University of Oregon, Published in 2008
71. Introduction to Non-Baryonic Dark Matter
    Paolo Gondolo | arXiv, Published in 2004, 51 pages
72. Cosmology
    V. A. Rubakov | arXiv.org, Published in 2018, 56 pages
73. Techniques of Radio Astronomy
    T. L. Wilson | arXiv, Published in 2011, 47 pages
74. Introductory Lectures on Quantum Cosmology
    J. J. Halliwell | arXiv, Published in 1990, 107 pages
75. The Formation and Evolution of the Solar System
    James Schombert | University of Oregon, Published in 2007
76. Hours With A Three-Inch Telescope
    William Noble | Longmans, Green & Co., Published in 1887, 159 pages
77. Celestial Mechanics: Notes and Work
    J.D. Mireles James | Rutgers University, Published in 2007, 128 pages
78. Introduction to the Theory of Black Holes
    Gerard 't Hooft | Utrecht University, Published in 2009, 49 pages
79. Elements of Astrophysics
    Nick Kaiser | University of Hawaii, Published in 2002, 435 pages
80. A Briefer History of Time: From the Big Bang to the Big Mac
    Eric Schulman | St. Martin's Press, Published in 2004, 207 pages
81. Inflation and String Theory
    Daniel Baumann, Liam McAllister | arXiv, Published in 2014, 349 pages
82. An Expanded View of the Universe
    | European Southern Observatory, Published in 2011, 54 pages
83. Dynamics of the Universe in Problems
    Yu. L. Bolotin, et al. | UniverseInProblems.com, Published in 2013, 113 pages
84. Mechanism of the Heavens
    Mary Somerville | J. Murray, Published in 1831, 710 pages
85. Cosmic Structure, Averaging and Dark Energy
    David L. Wiltshire | arXiv, Published in 2013, 55 pages
86. Notes on Stellar Astrophysics
    James N. Pierce | Minnesota State University, Published in 2013, 299 pages
87. Sky Surveys
    S. G. Djorgovski, A.A. Mahabal, A.J. Drake, M.J. Graham, C. Donalek | arXiv, Published in 2012, 62 pages
88. Cosmology Primer
    Sean Carroll | preposterousuniverse.com, Published in 2012, 120 pages
89. Solar Neutrinos
    V. Antonelli, L. Miramonti, C. Pena-Garay, A. Serenelli | arXiv, Published in 2012, 51 pages
90. Observations of the High Redshift Universe
    Richard S. Ellis | arXiv, Published in 2007, 115 pages
91. Introduction to Millimeter/Sub-Millimeter Astronomy
    T. L. Wilson | arXiv, Published in 2009, 106 pages
92. Introduction to Cosmology
    A. D. Dolgov | arXiv, Published in 2009, 58 pages
93. From Cosmic Birth to Living Earths: The Future of UVOIR Space Astronomy
    Julianne Dalcanton, et al. | arXiv, Published in 2015, 176 pages
94. Particle Physics and Inflationary Cosmology
    Andrei Linde | arXiv, Published in 2005, 270 pages
95. Supernova Cosmology: Legacy and Future
    Ariel Goobar, Bruno Leibundgut | arXiv, Published in 2011, 62 pages
96. The Birth and Death of Stars
    James Schombert | University of Oregon, Published in 2008
97. The Universe in a Helium Droplet
    Grigory E. Volovik | Oxford University Press, Published in 2003, 532 pages
98. Practical Astronomy
    George L. Hosmer | John Wiley and Sons Inc., Published in 1925, 314 pages
99. The Birth And Death Of The Sun
    George Gamow | Dover Publications, Published in 1940, 256 pages
100. Plasma Physics of Extreme Astrophysical Environments
     Dmitri A. Uzdensky, Shane Rightley | arXiv, Published in 2014, 56 pages
101. Evolution of the Solar System
     Hannes Alfven, Gustaf Arrhenius | NASA, Published in 1976
102. Planetary Photometry
     Max Fairbairn | , Published in 2005
103. High Energy Astrophysics
     Jonathan Katz | The Benjamin/Cummings Publishing, Published in 1986, 338 pages
104. Introduction to Supersymmetry: Astrophysical and Phenomenological Constraints
     Keith A. Olive | arXiv, Published in 1999, 67 pages
105. Cosmic Microwave Background Anisotropies up to Second Order
     Nicola Bartolo, Sabino Matarrese, Antonio Riotto | arXiv, Published in 2007, 53 pages
106. The Geology of the Terrestrial Planets
     Michael H. Carr | NASA, Published in 1984, 322 pages
107. The Cosmic Web: Geometric Analysis
     Rien van de Weygaert, Willem Schaap | arXiv, Published in 2007, 129 pages
108. Cosmic Rays in Galactic and Extragalactic Magnetic Fields
     F. Aharonian, A. Bykov, E. Parizot, V. Ptuskin, A. Watson | arXiv, Published in 2011, 43 pages
109. The Star Splitters: The High Energy Astronomy Observatories
     Wallace H. Tucker | NASA History Office, Published in 1984, 182 pages
110. Consolidated Lunar Atlas
     Gerald P. Kuiper, et al. | Lunar and Planetary Institute, Published in 1960
111. Introduction to Cosmology
     David H Lyth | arXiv, Published in 1993, 53 pages
112. Neutrinos and the Stars
     Georg Raffelt | arXiv, Published in 2012, 83 pages
113. Cosmology and Astrophysics
     Juan Garcia-Bellido | arXiv.org, Published in 2005, 76 pages
114. An Introduction to Astronomy
     Forest Ray Moulton | The MacMillan Company, Published in 1916, 577 pages
115. High Performance Computing and Numerical Modelling
     Volker Springel | arXiv, Published in 2014, 108 pages
116. Radiative Processes in High Energy Astrophysics
     Gabriele Ghisellini | arXiv, Published in 2012, 157 pages
117. Observing the Sky from 40N
     Roberto Mura | Wikibooks, Published in 2010, 86 pages
118. Why CMB physics?
     Massimo Giovannini | arXiv, Published in 2007, 179 pages
119. Advances in Global and Local Helioseismology: an Introductory Review
     Alexander G. Kosovichev | arXiv, Published in 2011, 86 pages
120. Origin of the Moon
     W. K. Hartmann, R. J. Phillips, G. J. Taylor | Lunar and Planetary Institute, Published in 1986, 781 pages
121. Superstring Cosmology
     James E. Lidsey, David Wands, E. J. Copeland | arXiv, Published in 2000, 161 pages
122. Pioneer Saturn Encounter
     | NASA, Published in 1979, 45 pages
123. Atomic and Molecular Processes in Astronomy and Planetary Science
     Geoffrey A. Blake | California Institute of Technology, Published in 2004
124. The Beginning and Evolution of the Universe
     Bharat Ratra, Michael S. Vogeley | arXiv, Published in 2008, 69 pages
125. The Hubble Constant
     Neal Jackson | arXiv, Published in 2014, 48 pages
126. Moon Trip: A Personal Account of the Apollo Program and its Science
     Elbert A. King | Lunar and Planetary Institute, Published in 1989, 162 pages
127. Curiosities of the Sky
     Garrett Putman Serviss | Harper & Brothers, Published in 1909, 300 pages
128. General Astronomy
     Harold Spencer Jones | Edward Arnold and Company, Published in 1924, 392 pages
129. Vision and Voyages for Planetary Science in the Decade 2013-2022
     | National Academy of Sciences, Published in 2011, 410 pages
130. A Text-book of Astronomy
     George C. Comstock | D. Appleton and company, Published in 1901, 391 pages
131. Practical Astronomy
     P. S. Michie, F. S. Harlow | John Wiley & Sons, Published in 1893, 246 pages
132. Through the Telescope
     James Baikie | Adam and Charles Black, Published in 1906, 303 pages
133. The Foundations of Celestial Mechanics
     George W. Collins, II | Pachart Pub House, Published in 2004, 145 pages
134. The Astronomy of the Bible
     E. Walter Maunder | Richard Clay & Sons, Published in 1908
135. Observatories in Space
     Catherine Turon | arXiv, Published in 2011, 50 pages
136. Dwarf-Galaxy Cosmology
     Regina Schulte-Ladbeck, at al. | Hindawi Publishing, Published in 2010, 238 pages
137. Space Nomads
     Leota Jean LaPaz, Lincoln LaPaz | Holiday House, Published in 1961, 199 pages
138. Cluster Lenses
     Jean-Paul Kneib, Priyamvada Natarajan | arXiv, Published in 2012, 120 pages
139. Mysteries of the Sun
     Ginger Butcher | NASA, Published in 2011, 20 pages
140. On the Origin (and Evolution) of Baryonic Galaxy Halos
     Duncan A. Forbes, Ericson D. Lopez | MDPI AG, Published in 2018, 232 pages
141. Massive Stars and their Supernovae
     F. Thielemann, R. Hirschi, M. Liebendorfer, R. Diehl | arXiv, Published in 2010, 81 pages
142. Lunar Orbiter Photographic Atlas of the Moon
     D.E. Hughes, J.K. Bowker | Lunar and Planetary Institute, Published in 1971
143. An Introduction to Celestial Mechanics
     Forest Ray Moulton | The MacMillan Company, Published in 1914, 437 pages
144. A practical guide to Basic Statistical Techniques for Data Analysis in Cosmology
     Licia Verde | arXiv, Published in 2008, 52 pages
145. The History of Astrometry
     Michael Perryman | arXiv, Published in 2012, 52 pages
146. Guidebook to the Geology of Barringer Meteorite Crater, Arizona
     David A. Kring | Lunar and Planetary Institute, Published in 2007, 154 pages
147. Modified Gravity and Cosmology
     T. Clifton, P.G. Ferreira, A. Padilla, C. Skordis | arXiv, Published in 2012, 312 pages
148. Gravitational Wave Detection by Interferometry
     Matthew Pitkin, Stuart Reid, Sheila Rowan, Jim Hough | arXiv, Published in 2011, 80 pages
149. An Introduction to Galactic Chemical Evolution
     Nikos Prantzos | arXiv, Published in 2007, 46 pages
150. Are We Alone?
     Gregg Easterbrook | The Atlantic Monthly, Published in 1988
151. Cosmology
     James Schombert | University of Oregon, Published in 2008
152. Basaltic Volcanism on the Terrestrial Planets
     | Pergamon Press, Published in 1981, 1286 pages
153. The Virial Theorem in Stellar Astrophysics
     George W. Collins, II | Pachart Pub. House, Published in 1978, 135 pages
154. An Introduction to Cosmic Rays and Gamma-Ray Bursts
     A. De Rujula | arXiv, Published in 2007, 37 pages
155. Elementary Mathematical Astronomy
     C. Barlow, G. Bryan | University Correspondence College Press, Published in 1893, 442 pages
156. Black-Hole Phenomenology
     Neven Bilic | arXiv, Published in 2006, 58 pages
157. Lectures on Astronomy, Astrophysics, and Cosmology
     Luis A. Anchordoqui | arXiv, Published in 2007, 41 pages
158. Supernova Remnants: The X-ray Perspective
     Jacco Vink | arXiv, Published in 2011, 78 pages
159. The First Stars
     Simon C. O. Glover | arXiv, Published in 2012, 72 pages
160. Astronomical Image and Data Analysis
     J.-L. Starck, F. Murtagh | Springer, Published in 2006, 335 pages
161. Chondrules and their Origins
     Elbert A. King | The Lunar and Planetary Institute, Published in 1983, 377 pages
162. An Introduction to Quantum Cosmology
     D.L. Wiltshire | arXiv, Published in 2003, 60 pages
163. Voyager Encounters Jupiter
     | National Aeronautics and Space Administration, Published in 1979, 48 pages
164. Galaxy systems in the optical and infrared
     A. Biviano | arXiv, Published in 2008, 60 pages
165. The Telescope
     Louis Bell | McGraw-Hill, Published in 1922, 294 pages
166. History of Astronomy
     George Forbes | , Published in 1909
167. Short History of Astronomy
     Arthur Berry | John Murray, Published in 1898, 439 pages
168. Ultrahigh Energy Cosmic Rays: Facts, Myths, and Legends
     Luis Alfredo Anchordoqui | arXiv, Published in 2011, 92 pages
169. Celestial Navigation, Elementary Astronomy, Piloting
     Arturo Chiesa, Raffaele Chiesa | Sky and Sea Software, Published in 2010
170. When Biospheres Collide: A History of NASA's Planetary Protection Programs
     Michael Meltzer | NASA, Published in 2011, 542 pages
171. Man's Place in the Universe
     Alfred R. Wallace | Chapman and Hall, Published in 1904, 330 pages
172. Encyclopedia of Astrophysics
     Søren Bertil F. Dorch | Scholarpedia, Published in 2009
173. Images of the Solar Upper Atmosphere From SUMER on SOHO
     Uri Feldman, at al. | ESA Publications Division, Published in 2003, 209 pages
174. Magnetic Fields, Strings and Cosmology
     Massimo Giovannini | arXiv, Published in 2006, 76 pages
175. A New Astronomy
     David Peck Todd | American Book Company, Published in 1906, 437 pages
176. Planetary Theory
     Ernest Brown, Clarence Shook | Cambridge University Press, Published in 1933, 323 pages
177. The Cosmological Constant
     Sean M. Carroll | arXiv, Published in 2000, 50 pages
178. Large Scale Structure of the Universe
     Alison L. Coil | arXiv, Published in 2012, 43 pages
179. Astronomy
     Andrew Fraknoi, David Morrison, Sidney C. Wolff | Unglue.it, Published in 2016, 1200 pages
180. Voyage to Jupiter
     David Morrison, Jane Samz | NASA, Published in 1980, 218 pages
181. The Practical Astronomer
     Thomas Dick | Seeley, Burnside, and Seeley, Published in 1845, 588 pages
182. Inflation
     Marieke Postma | NIKHEF, Published in 2009, 53 pages
183. Chemistry in Protoplanetary Disks
     Thomas Henning, Dmitry Semenov | arXiv, Published in 2013, 84 pages
184. Cosmology: The Study of the Universe
     | NASA, Published in 2009, 38 pages
185. Inflationary Cosmology and Structure Formation
     J. A. Peacock | arXiv, Published in 1996, 77 pages
186. Hubble 25: A Quarter-Century of Discovery with the Hubble Space Telescope
     Dylan Steele (ed.) | NASA, Published in 2015, 78 pages
187. Cosmos and Culture: Cultural Evolution in a Cosmic Context
     Steven J. Dick, Mark L. Lupisella | NASA, Published in 2010, 612 pages
188. Advanced Topics in Cosmology: A Pedagogical Introduction
     T. Padmanabhan | arXiv, Published in 2006, 40 pages
189. Elementary Astronomy
     James N. Pierce | , Published in 2013, 134 pages
190. Cosmology for Particle Physicists
     U. A. Yajnik | arXiv, Published in 2008, 63 pages
191. A Primer for Black Hole Quantum Physics
     R. Brout, S. Massar, R. Parentani, P. Spindel | arXiv, Published in 2007, 178 pages
192. Cosmological Evolution of Galaxies
     Isaac Shlosman | arXiv, Published in 2012, 88 pages
193. Voyager 1 Encounters Saturn
     | NASA, Published in 1980, 51 pages
194. TASI Lectures: Introduction to Cosmology
     Mark Trodden, Sean M. Carroll | arXiv, Published in 2004, 82 pages
195. Mag 7 Star Atlas Project
     Andrew L. Johnson | , Published in 2007, 21 pages
196. Cosmic Journey: A History of Scientific Cosmology
     N. S. Hetherington, W. P. McCray | American Institute of Physics, Published in 2009
197. Primer Of Celestial Navigation
     John Favill | Cornell Maritime Press, Published in 1944, 300 pages
198. Astronomy for Amateurs
     Camille Flammarion | D. Appleton and Company, Published in 1910
199. Oulu Space Physics Textbook
     Reijo Rasinkangas | University of Oulu, Published in 2008
200. First Light
     Abraham Loeb | arXiv, Published in 2006, 157 pages
201. Gravitational Waves: Sources, Detectors and Searches
     Keith Riles | arXiv, Published in 2012, 79 pages
202. Special Functions: Fractional Calculus and the Pathway for Entropy
     Hans J. Haubold (ed.) | MDPI AG, Published in 2018, 306 pages
203. Gamma-Ray Bursts: Progress, Problems and Prospects
     Bing Zhang, Peter Meszaros | arXiv, Published in 2008, 87 pages
204. An Exposition on Inflationary Cosmology
     Scott Watson | arXiv, Published in 2000, 93 pages
205. Big Bang Nucleosynthesis and Physics Beyond the Standard Model
     Subir Sarkar | arXiv, Published in 1996, 156 pages
206. Lecture notes on the formation and early evolution of planetary systems
     Philip J. Armitage | arXiv, Published in 2010, 63 pages
207. Dark Energy: Observational Evidence and Theoretical Models
     B. Novosyadlyj, V. Pelykh, Yu. Shtanov, A. Zhuk | Akademperiodyka, Published in 2013, 380 pages
208. Ekpyrotic and Cyclic Cosmology
     Jean-Luc Lehners | arXiv, Published in 2009, 79 pages
209. From Chaos to Consciousness: A Brief History of the Universe
     Mike Corwin | Bookboon, Published in 2015, 166 pages
210. Understanding Galaxy Formation and Evolution
     V. Avila-Reese | arXiv, Published in 2006, 50 pages
211. Multi-messenger Astronomy and Dark Matter
     Las Bergstrom | arXiv, Published in 2012, 105 pages
212. An introductory treatise on the lunar theory
     Ernest W Brown | Cambridge University Press, Published in 1896, 312 pages
213. The Complete Idiot's Guide to The Sun
     Jay M. Pasachoff | Alpha, Published in 2003, 350 pages
214. Traces of Catastrophe
     Bevan M French | Lunar and Planetary Institute, Published in 1998, 120 pages
215. Primordial Nucleosynthesis: from precision cosmology to fundamental physics
     F. Iocco, G. Mangano, G. Miele, O. Pisanti, P.D. Serpico | arXiv, Published in 2009, 148 pages
216. Planetary Rings
     Matthew S. Tiscareno | arXiv, Published in 2011, 82 pages
217. Frequently Asked Questions about Calendars
     Claus Tøndering | , Published in 2008, 65 pages
218. Searching for Life Across Space and Time
     | The National Academies Press, Published in 2017, 133 pages
219. Applied Cosmography: A Pedagogical Review
     Yu. L. Bolotin, et al. | arXiv.org, Published in 2018, 66 pages
220. Exoplanet Observing for Amateurs
     Bruce L. Gary | Reductionist Publications, Published in 2007, 170 pages
221. An Introduction to Celestial Mechanics
     Richard Fitzpatrick | The University of Texas at Austin, Published in 2011, 216 pages
222. A Practical Introduction to Numerical Hydrodynamics
     Garrelt Mellema | Leiden University, Published in 2003, 124 pages
223. The Fundamentals of Stellar Astrophysics
     George W. Collins, II | W H Freeman & Co, Published in 2003, 494 pages
224. General Astronomy
     | Wikibooks, Published in 2009
225. Advances in Modern Cosmology
     Adnan Ghribi | InTech, Published in 2011, 198 pages
226. Everything You Always Wanted To Know About The Cosmological Constant Problem
     Jerome Martin | arXiv, Published in 2012, 89 pages
227. Amateur Telescope Making
     | Springfield Telescope Makers Inc, Published in 2018, 428 pages
228. Practical Astronomy for Engineers
     Frederick Hanley Seares | Stephens, Published in 1909, 160 pages
229. Introduction to Dark Matter Experiments
     R. W. Schnee | arXiv.org, Published in 2011, 64 pages
230. Telescopic Work for Starlight Evenings
     William F. Denning | Taylor and Francis, Published in 1891, 372 pages
231. Stellar Atmospheres
     J. B. Tatum | , Published in 2006