Free Astrophysics Books

Astrophysics for People in a Hurry

Neil deGrasse Tyson, Sandra Martha Dolinsky, María del Carmen Román de la Peña

4.0 (58)

5.0K reads563 likes

Introductory astronomy and astrophysics

Introductory astronomy and astrophysics

Michael Zeilik

3.5 (2)

7.8K reads30 likes

Astrophysical concepts

Astrophysical concepts

Martin Harwit

1.0 (1)

5.6K reads19 likes

An introduction to modern astrophysics

An introduction to modern astrophysics

Bradley W. Carroll, Dale A. Ostlie

5.0 (1)

3.1K reads48 likes

Astrophysical techniques

Astrophysical techniques

C. R. Kitchin

4.1 (172)

7.7K reads9 likes

The End of Everything (Astrophysically Speaking)

The End of Everything (Astrophysically Speaking)

Katie Mack

3.8 (5)

5.1K reads66 likes

Astrophysics for Young People in a Hurry

Astrophysics for Young People in a Hurry

Neil deGrasse Tyson, Gregory Mone, Levar Burton, Gabrielle de Cuir

4.0 (2)

5.5K reads61 likes

Cauldrons in the cosmos

Cauldrons in the cosmos

Claus E. Rolfs, William S. Rodney

3.3 (3)

2.6K reads25 likes

Textbook of astronomy and astrophysics with elements of cosmology

Textbook of astronomy and astrophysics with elements of cosmology

V. B. Bhatia

5.0 (1)

3.6K reads31 likes

The Astrophysical journal

The Astrophysical journal

American Astronomical Society

Nuclear astrophysics

Nuclear astrophysics

Fowler, William A.

Astrophysics

Astrophysics

Judith Ann Irwin

3.9 (1.7K)

7.5K reads8 likes

An introduction to modern stellar astrophysics

An introduction to modern stellar astrophysics

Dale A. Ostlie, Bradley W. Carroll

3.8 (182)

680 reads9 likes

Astrophysics for babies

Chris Ferrie

Astrophysics for babies

Astrophysics for babies

Chris Ferrie

5.0 (2)

6.8K reads8 likes

Foundations of Astrophysics

Foundations of Astrophysics

Barbara Ryden, Bradley M. Peterson

3.6 (199)

4.7K reads9 likes

Astrophysics for Non-Mathematicians

Hiten SHELAR

Astrophysics for Non-Mathematicians

Astrophysics for Non-Mathematicians

Hiten SHELAR

Accessory to War

Accessory to War

Neil deGrasse Tyson, Avis Lang, Avis Lang

4.0 (1)

1.1K reads21 likes

An Introduction to Astrophysics

An Introduction to Astrophysics

Basu Baidyanath

4.2 (672)

5.1K reads11 likes

Astrophysical quantities

Astrophysical quantities

C. W. Allen

4.5 (366)

2.3K reads3 likes

Welcome to the Universe

Welcome to the Universe

Neil deGrasse Tyson, J. Richard Gott, Michael A. Strauss, Michael Butler Murray, Richard Gott, Francisco Manuel Vázquez Carracedo

2.0 (1)

5.0K reads49 likes

Introduction to high-energy astrophysics

Introduction to high-energy astrophysics

Stephan Rosswog, Stephan Rosswog, Marcus Bruggen

3.8 (635)

806 reads9 likes

Handbook of space astronomy and astrophysics

Handbook of space astronomy and astrophysics

Martin V. Zombeck

3.7 (1.9K)

5.6K reads3 likes

Neutrino Astrophysics

Neutrino Astrophysics

John N. Bahcall

3.8 (1.8K)

6.5K reads5 likes

Astrophysics with a PC

Astrophysics with a PC

P. Hellings

3.6 (1.1K)

4.9K reads8 likes

Modern astrophysics ..

Modern astrophysics ..

Herbert Dingle

3.9 (344)

3.0K reads2 likes

Imaging of diffuse HI absorption structure in the SSA22 proto-cluster region at z = 3.1

Imaging of diffuse HI absorption structure in the SSA22 proto-cluster region at z = 3.1

Ken Mawatari, Akio K. Inoue, Toru Yamada, Tomoki Hayashino, Takuya Otsuka, Yuichi Matsuda, Hideki Umehata, Masami Ouchi, Shiro Mukae

3.7 (631)

31 reads1 likes

Astrophysics and Stellar Structure

Astrophysics and Stellar Structure

Lioyd Motz

3.9 (127)

2 reads0 likes

Babcock-Leighton solar dynamo: the role of downward pumping and the equatorward propagation of activity

Babcock-Leighton solar dynamo: the role of downward pumping and the equatorward propagation of activity

Bidya Binay Karak, Robert Cameron

3.7 (93)

29 reads1 likes

Evidence for quasi-periodic oscillations in the optical polarization of the blazar PKS 2155-304

Evidence for quasi-periodic oscillations in the optical polarization of the blazar PKS 2155-304

N. W. Pekeur, A. R. Taylor, S. B. Potter, R. C. Kraan-Korteweg

4.6 (184)

31 reads1 likes

Molecular Gas Kinematics and Line Diagnostics in Early-type Galaxies: NGC4710 and NGC5866

Molecular Gas Kinematics and Line Diagnostics in Early-type Galaxies: NGC4710 and NGC5866

Selcuk Topal, Martin Bureau, Timothy A. Davis, Melanie Krips, Lisa M. Young, Alison F. Crocker

3.8 (521)

38 reads1 likes

CO-to-H_2 Conversion Factor of Molecular Clouds using X-Ray Shadows

CO-to-H_2 Conversion Factor of Molecular Clouds using X-Ray Shadows

Yoshiaki Sofue, Jun Kataoka

4.3 (1.7K)

29 reads1 likes

The triggering mechanism and properties of ionized outflows in the nearest obscured quasars

The triggering mechanism and properties of ionized outflows in the nearest obscured quasars

M. Villar Martin, B. Emonts, A. Humphrey, A. Cabrera Lavers, L. Binette

3.8 (1.1K)

32 reads1 likes

The supergiant shell with triggered star formation in Irr galaxy IC 2574: neutral and ionized gas kinematics

The supergiant shell with triggered star formation in Irr galaxy IC 2574: neutral and ionized gas kinematics

O. V. Egorov, T. A. Lozinskaya, A. V. Moiseev, G. V. Smirnov-Pinchukov

4.5 (116)

27 reads1 likes

Cover of "Gemini Planet Imager Observational Calibrations IV: Wavelength Calibration and Flexure Correction for the Integral Field Spectrograph" by Schuyler G. Wolff, Marshall D. Perrin, Jérôme Maire, Patrick J. Ingraham, Fredrik T. Rantakyrö, Pascale Hibon, with the GPI team

Gemini Planet Imager Observational Calibrations IV: Wavelength Calibration and Flexure Correction for the Integral Field Spectrograph

Gemini Planet Imager Observational Calibrations IV: Wavelength Calibration and Flexure Correction for the Integral Field Spectrograph

Schuyler G. Wolff, Marshall D. Perrin, Jérôme Maire, Patrick J. Ingraham, Fredrik T. Rantakyrö, Pascale Hibon, with the GPI team

4.2 (180)

29 reads1 likes

A comment on power-law inflation with a dark radiation component

A comment on power-law inflation with a dark radiation component

Eleonora Di Valentino, Francois R. Bouchet

4.4 (475)

32 reads1 likes

Impulsively Generated Linear and Non-linear Alfven Waves in the Coronal Funnels

Impulsively Generated Linear and Non-linear Alfven Waves in the Coronal Funnels

P. Chmielewski, A. K. Srivastava, K. Murawski, Z. E. Musielak

3.8 (1.8K)

28 reads1 likes

Evolutionary Description of Giant Molecular Cloud Mass Functions on Galactic Disks

Evolutionary Description of Giant Molecular Cloud Mass Functions on Galactic Disks

Masato I. N. Kobayashi, Shu-ichiro Inutsuka, Hiroshi Kobayashi, Kenji Hasegawa

3.9 (843)

35 reads1 likes

Cover of "Surface flux transport simulations: Effect of inflows toward active regions and random velocities on the evolution of the Sun's large-scale magnetic field" by David Martin-Belda, Robert H. Cameron

Surface flux transport simulations: Effect of inflows toward active regions and random velocities on the evolution of the Sun's large-scale magnetic field

Surface flux transport simulations: Effect of inflows toward active regions and random velocities on the evolution of the Sun's large-scale magnetic field

David Martin-Belda, Robert H. Cameron

4.5 (2.0K)

33 reads1 likes

Fundamental cosmology in the E-ELT era: The status and future role of tests of fundamental coupling stability

Fundamental cosmology in the E-ELT era: The status and future role of tests of fundamental coupling stability

C. J. A. P. Martins

3.7 (244)

38 reads1 likes

Is There Scale-Dependent Bias in Single-Field Inflation?

Is There Scale-Dependent Bias in Single-Field Inflation?

Roland de Putter, Olivier Doré, Daniel Green

3.7 (715)

51 reads2 likes

Cover of "Radiative Transfer Modeling of Radio-band Linear Polarization Observations as a Probe of the Physical Conditions in the Jets of Gamma-ray Flaring Blazars" by Margo F. Aller, Philip A. Hughes, Hugh D. Aller, Talvikki Hovatta, Venkatessh Ramakrishnan

Radiative Transfer Modeling of Radio-band Linear Polarization Observations as a Probe of the Physical Conditions in the Jets of Gamma-ray Flaring Blazars

Radiative Transfer Modeling of Radio-band Linear Polarization Observations as a Probe of the Physical Conditions in the Jets of Gamma-ray Flaring Blazars

Margo F. Aller, Philip A. Hughes, Hugh D. Aller, Talvikki Hovatta, Venkatessh Ramakrishnan

3.6 (575)

39 reads1 likes

JVLA Wideband Polarimetry Observations on a Sample of High Rotation Measure Sources

JVLA Wideband Polarimetry Observations on a Sample of High Rotation Measure Sources

Alice Pasetto, Carlos Carrasco-González, Gabriele Bruni, Aritra Basu, Shane O'Sullivan, Alex Kraus, Karl-Heinz Mack

3.7 (322)

30 reads1 likes

Synthetic polarimetric spectra from stellar prominences

Synthetic polarimetric spectra from stellar prominences

T. Felipe, M. J. Martínez González, A. Asensio Ramos

3.8 (1.2K)

34 reads1 likes

FENOMENA BLOOD MOON 3 MARET 2026 ADITIYA WIDODO PUTRA 20260303 171829 0000

FENOMENA BLOOD MOON 3 MARET 2026 ADITIYA WIDODO PUTRA 20260303 171829 0000

Aditiya Widodo Putra

3.5 (1.4K)

2 reads0 likes

Asteroseismic modelling of the Binary HD 176465

Asteroseismic modelling of the Binary HD 176465

B. Nsamba, M. J. P. F. G. Monteiro, T. L. Campante, D. R. Reese, T. R. White, A. García Hernández, C. Jiang

4.6 (2.0K)

42 reads2 likes

Twenty-first Century Lattice Gauge Theory: Results from the QCD Lagrangian

Twenty-first Century Lattice Gauge Theory: Results from the QCD Lagrangian

Andreas S. Kronfeld

4.1 (442)

112 reads5 likes

The HST survey of Magellanic-Cloud clusters and of their stellar populations

The HST survey of Magellanic-Cloud clusters and of their stellar populations

A. P. Milone

4.2 (1.8K)

28 reads1 likes

Mass-angular-momentum relations implied by models of twin peak quasi-periodic oscillations

Mass-angular-momentum relations implied by models of twin peak quasi-periodic oscillations

Gabriel Torok, Pavel Bakala, Eva Sramkova, Zdenek Stuchlik, Martin Urbanec, Katerina Goluchova

4.4 (366)

30 reads1 likes

Initial Conditions for Inflation - A Short Review

Initial Conditions for Inflation - A Short Review

Robert Brandenberger

3.7 (1.4K)

45 reads2 likes

Astronomy and Astrophysics

Astronomy and Astrophysics

Unknown Author

4.2 (583)

41.4K reads1.4K likes

Modern Astrophysics

Modern Astrophysics

Herbert Dingle

4.5 (396)

47.7K reads135 likes

Problems in Astrophysics

Problems in Astrophysics

Agnes Mary Clerke

4.0 (594)

49.6K reads886 likes

Nuclear Science Abstracts

Nuclear Science Abstracts

Unknown Author

3.6 (930)

47.7K reads1.9K likes

NASA Technical Memorandum

NASA Technical Memorandum

Unknown Author

4.1 (486)

8.7K reads1.9K likes

Research and Technology Objectives and Plans Summary

Research and Technology Objectives and Plans Summary

Unknown Author

4.4 (499)

38.8K reads1.4K likes

Princeton University Library Classification System, 1900-1920

Princeton University Library Classification System, 1900-1920

Ernest Cushing Richardson

3.6 (637)

18.5K reads1.4K likes

Energy Research Abstracts

Energy Research Abstracts

Unknown Author

4.7 (528)

14.9K reads1.1K likes

The Report of the President

The Report of the President

University of Chicago

3.6 (82)

48.2K reads1.4K likes

The Decennial Publications of the University of Chicago

The Decennial Publications of the University of Chicago

University of Chicago

3.8 (642)

38.8K reads1.6K likes

The President's Report, July, 1892-July, 1902

The President's Report, July, 1892-July, 1902

University of Chicago

4.5 (537)

6.3K reads1.7K likes

Circular of Information

Circular of Information

University of Chicago

4.3 (1.0K)

6.6K reads976 likes

The Decennial Publications

The Decennial Publications

University of Chicago

Annual Catalogue

Annual Catalogue

University of Chicago

4.6 (221)

16.3K reads1.2K likes

McGill University Publications

McGill University Publications

Unknown Author

4.3 (687)

13.7K reads147 likes

7000-7999, Social sciences, 8000-8999, Natural sciences; 9000-9999, Technology

7000-7999, Social sciences, 8000-8999, Natural sciences; 9000-9999, Technology

Princeton University. Library

3.6 (783)

25.7K reads1.2K likes

Astronomy and Astro-physics

Astronomy and Astro-physics

Unknown Author

3.8 (255)

41.2K reads358 likes

The Encyclopedia Americana

The Encyclopedia Americana

Unknown Author

4.3 (999)

11.6K reads606 likes

Annual Report of the Board of Regents of the Smithsonian Institution

Annual Report of the Board of Regents of the Smithsonian Institution

Smithsonian Institution

3.6 (104)