Tybie Jones

Tybie Jones

Modified & Updated: 08 Sep 2023

Source: Nasa.gov

The Hubble Space Telescope has revolutionized our understanding of the vast universe beyond our planet. Since its launch by NASA in 1990, this remarkable technological marvel has provided us with breathtaking images and invaluable scientific data. From discovering distant galaxies to unlocking the mysteries of black holes, the Hubble Space Telescope has been a game-changer in the field of astronomy.

In this article, we will delve into 10 intriguing facts about the Hubble Space Telescope that will leave you astounded. From its initial setbacks to its extraordinary accomplishments, we will explore the wonders and discoveries made possible by this iconic space observatory. So buckle up and prepare to be amazed as we embark on a voyage through space and unravel the secrets of the universe with the Hubble Space Telescope.

Table of Contents

The Hubble Space Telescope was launched in 1990.

The Hubble Space Telescope, also known as HST, was launched into space on April 24, 1990, by the Space Shuttle Discovery. It has since become one of the most celebrated and powerful tools for observing the universe.

It is named after astronomer Edwin Hubble.

The Hubble Space Telescope was named after Edwin Hubble, the American astronomer who made significant contributions to our understanding of galaxies and the expansion of the universe. It serves as a tribute to his pioneering work in the field of astrophysics.

The Hubble Space Telescope is the size of a large school bus.

Despite its monumental capabilities, the Hubble Space Telescope is surprisingly compact. It measures approximately 43.5 feet (13.2 meters) long, which is roughly the size of a large school bus. This allows it to fit snugly aboard the Space Shuttle during its transport to space.

It has captured stunning images of distant galaxies.

One of the Hubble Space Telescope’s most remarkable achievements is its ability to capture breathtaking images of galaxies located billions of light-years away. These images have provided scientists with invaluable insights into the formation and evolution of galaxies throughout the history of the universe.

The Hubble Space Telescope weighs about 24,500 pounds (11,100 kilograms).

For a space-based observatory, the Hubble Space Telescope has a significant weight. It weighs approximately 24,500 pounds, which is equivalent to 11,100 kilograms. This weight is mainly due to its intricate system of instruments, mirrors, and other components necessary for its groundbreaking observations.

The Hubble Space Telescope’s mirror was flawed at launch.

During the development of the Hubble Space Telescope, a significant flaw was discovered in its primary mirror. It had a spherical aberration, which affected its focusing capabilities. However, a servicing mission in 1993 successfully corrected the mirror’s defect, allowing Hubble to achieve its full potential.

It has helped to refine the age of the universe.

By observing distant stars and galaxies, the Hubble Space Telescope has played a crucial role in refining our understanding of the age of the universe. Its measurements have contributed to determining the current estimate of the universe’s age to be approximately 13.8 billion years.

The Hubble Space Telescope orbits Earth at a speed of about 17,500 mph.

The Hubble Space Telescope orbits our planet approximately every 97 minutes. It travels at an astonishing speed of about 17,500 miles per hour (28,000 kilometers per hour), allowing it to constantly observe different regions of space without being limited by the Earth’s rotation.

It has made over 1.4 million observations since its launch.

Throughout its operational lifespan, the Hubble Space Telescope has made over 1.4 million astronomical observations. These observations have contributed to countless scientific discoveries and have vastly expanded our knowledge of the universe.

The Hubble Space Telescope is expected to remain operational until the 2030s.

Despite its age, the Hubble Space Telescope continues to make groundbreaking discoveries. NASA has estimated that the telescope will remain operational until the 2030s, ensuring that it continues to unravel the mysteries of the cosmos for years to come.


In conclusion, the Hubble Space Telescope has revolutionized our understanding of the universe and continues to amaze us with its remarkable discoveries. From capturing awe-inspiring images of distant galaxies to providing valuable data on the age and expansion of the universe, Hubble has significantly contributed to our knowledge of space. Its ability to peer into the depths of the cosmos has allowed scientists to unravel mysteries that were once thought impossible to solve.

The Hubble Space Telescope stands as a testament to human ingenuity and technological advancements. It has not only expanded our knowledge but has also ignited a sense of wonder and curiosity within us. As we look towards the future, we eagerly anticipate the developments that will further enhance our exploration and understanding of the vast expanse of the universe.


Q: What is the purpose of the Hubble Space Telescope?

A: The Hubble Space Telescope is primarily used to observe and study astronomical objects, including galaxies, planets, stars, and nebulae. Its high-resolution images and precise measurements have greatly contributed to various fields of astrophysics.

Q: How far can the Hubble Space Telescope see?

A: The Hubble Space Telescope can capture images of objects that are located billions of light-years away. Its deep space observations have allowed scientists to study the universe’s early stages and gain insights into its evolution.

Q: How long has the Hubble Space Telescope been in operation?

A: The Hubble Space Telescope was launched into orbit on April 24, 1990, and has been in operation for over three decades. It has undergone several servicing missions to upgrade its instruments and extend its lifespan.

Q: What are some of the significant discoveries made by the Hubble Space Telescope?

A: The Hubble Space Telescope has made numerous groundbreaking discoveries, including determining the rate of the universe’s expansion, finding evidence for the existence of dark energy, and capturing detailed images of planets outside our solar system.

Q: Can the general public access Hubble’s images?

A: Yes, the Hubble Space Telescope provides free access to its vast library of images and data. Anyone can explore and download these stunning visuals through various platforms and websites.