Reframe the content of this text as a story about the Hubble Space Telescope's journey from an idea to a space-based observatory.

Since its launch in 1990, the Hubble Space Telescope (HST) has provided a dazzling array of images that have awed and inspired the public. 

But Hubble's about far more than just pretty pictures. The mission has gathered dozens of terabytes of data over the decades, providing key insights into the universe, from objects as close as the moon to the most remote galaxies, with observations of supernovas and nebulas in between. 

Here we explore the history of the telescope and its many discoveries, provide interesting Hubble facts and link to some of the orbiting observatory's best images. 

When Galileo Galilei first turned a spyglass to the heavens in 1610, he had trouble making out the rings of Saturn that are visible in inexpensive telescopes today. Advances in optics eventually improved scientists' views of the planets, stars and distant galaxies, but Earth's atmosphere still blocked or distorted much of the light for observers on the ground. Larger telescopes were, and still are, placed atop mountains, where the thinner atmosphere at higher elevations allows clearer pictures.

In 1946, soon after World War II, astronomer Lyman Spitzer proposed launching a space telescope, which could overcome the limitations of ground-based observatories. It took a couple more decades before the idea garnered enough support for the U.S. National Academy of Sciences to organize a committee of scientists to evaluate the potential of a "Large Space Telescope." With Spitzer at the helm, the committee published a document in 1969 that outlined the scientific uses of a Large Space Telescope and advocated for its construction, according to a Hubble history written by Gabriel Olkoski for NASA. 

The National Academy of Sciences took the pitch to NASA — the only agency capable of making the Large Space Telescope a reality. NASA was already considering a space telescope of some type, but the agency was undecided about how big to make it and where to start. In 1971, George Low, the agency's acting administrator at the time, greenlit the Large Space Telescope Science Steering Group, and NASA soon began lobbying Congress for funding for the endeavor. 

The expensive project was a tough sell, and funding was initially denied by the House Appropriations Subcommittee in 1975. NASA then upped its lobbying efforts and got buy-in from European Space Agency, which shared the costs. Congress eventually granted funding for NASA's portion of the Large Space Telescope in 1977.  

Development began almost immediately. NASA planned to launch the telescope in 1983, but various production delays pushed the launch date back to 1986. 

In the meantime, the Large Space Telescope was renamed Hubble in honor of Edwin Hubble, an American astronomer who, among other things, determined that the universe extended beyond the borders of the Milky Way. 

Hubble's planned liftoff was delayed again after the space shuttle Challenger exploded a minute after takeoff on Jan. 28, 1986, killing all seven astronauts on board. It was more than 2.5 years before shuttle flights resumed and NASA could begin planning Hubble's launch again.  

Hubble finally launched aboard the space shuttle Discovery on April 24, 1990 and a day later was deployed into low Earth orbit, about 340 miles (545 kilometers) above our planet. Getting Hubble developed and launched cost $1.5 billion, but there would be ongoing costs as well — both expected and unexpected.
Once upon a time, in the year 1990, a marvel of technology named the Hubble Space Telescope (HST) embarked on an unprecedented journey into the cosmos. Its primary mission was not just to click eye-catching images of the universe, but also to unravel the mysteries of celestial bodies ranging from our nearest satellite, the moon, to the farthest galaxies.

This tale, however, started long before Hubble's epic space odyssey, when Galileo Galilei aimed a simple spyglass at the stars in 1610. Despite the blurry images and the immense difficulty in discerning Saturn's rings, it laid the groundwork for future explorations.

After World War II, an astronomer named Lyman Spitzer dreamed about a telescope free from the clutches of atmospheric distortion. But it wasn't until the late 1960s that his idea gained traction. Led by Spitzer, a group of distinguished scientists compiled a document underlining the scientific potential of a Large Space Telescope.

The proposal caught the attention of NASA, the only organization capable of realizing such an ambitious project. Even though they were already considering a space telescope, they needed guidance on its size and the starting point. Following an endorsement from George Low, the acting administrator at that time, the Large Space Telescope project received an official nod.

However, convincing the House Appropriations Subcommittee to fund this costly endeavor wasn't easy, and they initially turned down the request in 1975. Not deterred, NASA redoubled its efforts and enlisted the European Space Agency to share the burden of cost. Their persistence paid off when they secured funding from Congress in 1977.

With the green light shining brightly, NASA jumped into action, planning to launch the telescope in 1983. But a series of delays postponed the launch date until 1986. Meanwhile, the Large Space Telescope was christened "Hubble," in tribute to Edwin Hubble, the American astronomer who confirmed the universe's expansiveness beyond the Milky Way.

An unfortunate incident, the explosion of the space shuttle Challenger in 1986, which resulted in the loss of seven astronauts, further delayed Hubble's launch. It took more than two years for NASA to recover and resume planning for Hubble's journey.

Finally, on April 24, 1990, the Hubble Space Telescope was launched into low Earth orbit by the space shuttle Discovery, where it now resides 340 miles above the Earth. Despite costing $1.5 billion to develop and launch, the astronomical payoff of Hubble's invaluable scientific contributions has been worth every cent.