Hubble e-Books
Hubble has a wealth of free e-books available to download. Explore our Hubble Focus series and learn more about a specific scientific phenomena, or discover one of our other e-books that provide an overview of the mission, celebrate anniversaries, and more. Happy reading!
Hubble Focus Black Holes: Into the Vortex
This NASA Hubble Space Telescope downloadable e-book, Black Holes: Into the Vortex, is the sixth edition in the Hubble Focus series, which explores cosmic topics that were transformed by Hubble’s unparalleled vision. Black Holes: Into the Vortex, highlights Hubble’s recent discoveries about black holes, incredibly dense objects whose gravity is so intense that not even light can escape its pull.
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Hubble Overview Books
These books offer an overview of Hubble science, history, and images.

Hubble’s Beautiful Universe
Beautiful Universe takes readers on a journey through Hubble’s mission, from 1990 to today, with many of the breathtaking images of the cosmos it collected along the way.

Reshaping Our Cosmic View: Hubble Science Highlights
Reshaping Our Cosmic View: Hubble Science Highlights features some of Hubble’s ground-breaking discoveries over its more than three decades of observations.

Hubble: An Overview of the Space Telescope
Hubble: An Overview of the Space Telescope briefly describes its history, design, operation, science, technology transfers, and cultural impact.

Not Yet Imagined: A Study of Hubble Space Telescope Operations
Not Yet Imagined documents Hubble history from the telescope’s launch through its first 30 years, focusing on the interactions between astronomers, engineers, government officials, and public during that time.

A Quarter-Century of Discovery with the Hubble Space Telescope
In celebration of Hubble’s 25th anniversary (2015), explore 25 of Hubble’s breathtaking and significant images.

Hubble Space Telescope Discoveries
Published in 2012, Hubble Space Telescope Discoveries showcases Hubble's first two decades of discovery.
Hubble Focus Series
This series explores cosmic topics in depth, outlining the observations that Hubble and its observing partners made to transform our knowledge of the universe.

Black Holes: Into the Vortex
Black Holes: Into the Vortex explores Hubble’s recent discoveries about black holes, incredibly dense objects whose gravity is so intense that not even light can escape its pull.

Dark Universe
Dark Universe highlights the mission’s recent discoveries about dark matter and dark energy.

Strange New Worlds
Strange New Worlds highlights the mission’s discoveries about worlds outside our solar system, known as exoplanets.

The Lives of Stars
The Lives of Stars highlights some of Hubble’s discoveries about stars, providing a window into how stars are born, how they evolve, and how they meet their demise.

Galaxies through Space and Time
Galaxies through Space and Time describes some of Hubble’s discoveries about galaxies — homes to stars, nebulae and planets.

Our Amazing Solar System
Our Amazing Solar System describes some Hubble’s remarkable observations and discoveries about the planets, moons, and smaller bodies orbiting around our Sun.
Hubble Activity Books
These books offer an overview of Hubble science and history.

Hubble Activity Workbook
This five-page activity booklet offers Hubble explorers coloring pages, connect the dots, word find, word jumble, and word decoder.
Hubble Activities
Expand your cosmic horizons by playing some of Hubble's interactive games and by downloading other Hubble activities.
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