Look up at the night sky. The stars twinkle because our air wiggles. That wiggling makes it very hard to see. Scientists wanted a perfectly clear view.
A man named Lyman Spitzer had a bold idea. He wanted to put a telescope above the air. He thought of this in nineteen forty six. People thought it was just a dream.
The air acts like a dirty window. It blocks many colors of space light. Space telescopes can see all the hidden colors. This helps us understand how stars live.
Scientists worked for decades to convince leaders. They needed a lot of money. The telescope would cost billions of dollars. It was a huge risk for everyone.
The telescope was named after Edwin Hubble. He was a famous space scientist. He proved the universe is always getting bigger. Naming it after him was a great honor.
Building the telescope took many long years. Workers had to make a giant mirror. The mirror was eight feet wide. It had to be the smoothest glass ever made.
Machines polished the big mirror for months. They used special lasers to measure it. The shape had to be absolutely perfect. Even a tiny bump would ruin the pictures.
The telescope was the size of a school bus. It was packed with special cameras. It had shiny solar panels to catch sunlight. The bright sun would power all its computers.
Finally, the big launch day arrived. It was April in the year nineteen ninety. A space shuttle carried Hubble into the sky. The whole world watched it go up.
Astronauts opened the heavy shuttle doors. They gently pushed Hubble out into space. It floated high above the Earth. Everyone cheered back on the ground.
Then the scientists turned Hubble on. They waited for the first beautiful pictures. But something was terribly wrong. The pictures were fuzzy and very blurry.
The giant mirror had a bad mistake. The edges were far too flat. The error was thinner than a human hair. But it was enough to ruin the focus.
People were very angry and sad. Newspapers made fun of the telescope. They called it a giant piece of space junk. The scientists felt completely heartbroken.
But scientists do not give up easily. They figured out exactly what went wrong. The mirror acted like a bad eye. Hubble just needed a pair of glasses.
Engineers designed tiny, special mirrors. These mirrors would bend and fix the blurry light. They put them inside a box. The box was the size of a telephone booth.
In nineteen ninety three, astronauts launched into space again. Their job was to fix Hubble. It was a very dangerous mission. They had to work outside in deep space.
The astronauts caught the floating telescope. They pulled it into their space shuttle. Then they put on their heavy spacesuits. They went out into the cold dark.
They worked outside for five long days. They carefully took out old broken cameras. They slid the new glasses box inside. It had to fit perfectly tight.
The astronauts finished their hard work. They let Hubble go back into space. The telescope was floating alone again. Everyone held their breath on Earth.
The scientists turned the cameras back on. A new picture beamed down to Earth. It was completely crystal clear. The fuzzy stars were now bright, sharp points.
Hubble was finally working right. It could see further than any human eye. It looked deep into the dark sky. The universe was suddenly full of new wonders.
Hubble looked at a giant cloud of gas. It was called the Eagle Nebula. The telescope saw huge pillars of dust. Baby stars were being born inside them.
These dust pillars were trillions of miles long. They looked like fingers reaching into space. People called them the Pillars of Creation. The picture became very famous.
Scientists wanted to try a bold experiment. They pointed Hubble at a totally empty spot. They left the camera open for ten days. Some thought it was a giant waste.
When the picture came back, people gasped. The empty spot was not empty at all. It was filled with thousands of tiny glowing dots. Every dot was a whole galaxy.
A galaxy is a massive group of stars. Our own Milky Way is one single galaxy. Hubble showed us the universe has billions of galaxies. We are just a tiny part.
Hubble also looked at planets close to home. It watched giant storms blow on Jupiter. It saw a comet crash into the gas planet. The fiery explosions were huge.
The telescope helped solve a big mystery. It measured how fast the universe is growing. Scientists learned the universe is fourteen billion years old. That is a very long time.
Hubble found super massive black holes. These are dark monsters hiding in space. They eat anything that gets too close. Almost every galaxy has one in the middle.
The telescope looked at old stars blowing up. These big explosions are called supernovas. They are brighter than a billion normal stars. They create the dust that makes new planets.
Hubble proved that other stars have planets. It saw the dark shadows of these worlds. It even looked at the air around them. Maybe some of them have water.
Over the years, parts on Hubble broke down. Space is a very harsh place. It is extremely cold and extremely hot. The sun destroys shiny metal over time.
Astronauts visited Hubble four more times. They flew up in space shuttles. They gave the telescope brand new batteries. They added even better cameras.
The last visit was in two thousand nine. The astronauts gave Hubble its final hug. They made it stronger than ever before. There will be no more rescue trips.
Hubble has taken over one million pictures. It has completely changed how we see everything. It wrote new science books for kids. It made space feel closer to home.
Before Hubble, space was mostly a guessing game. Scientists argued about basic facts. Hubble gave them real pictures. It replaced guesses with true facts.
The telescope orbits Earth very fast. It goes around us every ninety five minutes. It travels five miles every single second. It never stops working.
Hubble does not have a steering wheel. It uses heavy spinning wheels to turn around. These wheels move very slowly. It takes fifteen minutes to turn ninety degrees.
The pictures from Hubble start as black and white. Scientists on Earth add the rich colors. They use colors to show different gases. Red shows sulfur and green shows hydrogen.
These colors help scientists learn about stars. They can tell what a star is made of. They can tell exactly how hot a star is. The pictures are both art and science.
Hubble showed us dark energy. This is a mysterious force in space. It pushes everything apart. It makes the universe grow faster and faster.
Nobody knows what dark energy is. It is the biggest puzzle in science today. Hubble found it by watching old stars explode. This big discovery shocked the whole world.
Even after thirty years, Hubble works hard. New telescopes have joined it in space. But Hubble is still very special. It sees special light that others cannot.
Hubble can see ultraviolet light. This is the light that gives you a sunburn. The new telescopes cannot see this light. Hubble is still needed every day.
Kids all over the world love Hubble. The pictures hang in classrooms and bedrooms. They inspire people to become brave astronauts. They make us dream about the stars.
Every day, Hubble makes new discoveries. It watches wild weather on other planets. It finds new moons hiding in the dark. Space is always full of fun surprises.
Hubble taught us we are made of stardust. The iron in your blood came from exploding stars. The telescope showed us this amazing circle of life. We are connected to the sky.
The telescope acts like a flying time machine. Light takes time to travel through space. When Hubble looks at distant galaxies, it looks backward. It sees them as they were long ago.
The furthest things Hubble sees are very old. It sees galaxies from when the universe was a baby. We can watch how galaxies grow up. It is like looking at a baby album.
One day, Hubble will finally stop working. Its old parts will break down. Gravity will slowly pull it back down. It will burn up in the sky.
But the memory of Hubble will never fade. The computer files are saved forever. Scientists will study its data for hundreds of years. The lessons will not be lost.
Hubble showed humans our true place. We live on a tiny rock. The rock floats in an endless dark ocean. We are small, but we can understand the giant universe.
The telescope brought the whole world together. Countries shared its beautiful pictures. People forgot their fights when they looked at the stars. It united us in wonder.
Hubble completely changed our human eyes. We used to look up and see tiny white dots. Now we look up and see a crowded, colorful universe. The night sky will never be the same.
Hubble is a story about human stubbornness. We wanted to see the invisible dark sky. We built a flying eye and fixed its broken glass. It proved the universe is incredibly beautiful.