Read about planets, stars, galaxies and the people and tools used to explore space. Choose an article below; its reading controls let you move between the available levels.
1,134 public articles · Page 22 of 24
Some stars are very special. They are big and cool. They have much carbon in them. This makes them different from other stars. We can see them in the sky. Do you like looking at stars?
Early Reader · Change the reading level on the articleThis is a big tool for space. It sits on a high hill in Hawaii. It helps us see far stars. It can even find new worlds. We use it to learn about our sky. Do you like looking at stars?
Early Reader · Change the reading level on the articleSome things in space are hard to name. They are like big, gas clouds. They can look like stars. They can also look like planets. They float in the dark. Do you like to look at the stars?
Early Reader · Change the reading level on the articleSome stars are special. They are called subdwarfs. These stars are very old. They do not have much metal in them. This makes them look different. They can be hot or cool. Do you like looking at stars?
Early Reader · Change the reading level on the articleA subgiant is a star. It is getting bigger. It is also getting brighter. This happens as the star gets old. It is not a giant star yet. It is in between. Do you like stars?
Early Reader · Change the reading level on the articleWe use special tools to see space. These tools look at dust in the sky. The dust helps us see how stars are born. It helps us learn about the stars. It is very cool to see! Can you look at the stars tonight?
Early Reader · Change the reading level on the articleA rocket can go to space. It goes up high. Then it falls back down. It does not stay in space. This helps us learn new things. It is a fast trip. Do you want to fly high?
Early Reader · Change the reading level on the articleSome things in space are not stars. They are too small to glow. They can be like big planets. These objects can be very cold. They might even have water in the air. It is fun to look at them! Do you like looking at…
Early Reader · Change the reading level on the articleSultan flew in a space ship. He went far up in the sky. He was a pilot too. He helped put a tool in space. This was a big job for him. Do you like looking at the stars?
Early Reader · Change the reading level on the articleThe sun stays out a long time. This is the longest day. The sun is very high in the sky. It is the middle of summer. We can have fun in the sun. Do you like long, sunny days?
Early Reader · Change the reading level on the articleSome comets fly very close to the Sun. They get very bright. The heat can make them melt away. Some stay whole and keep flying. They are amazing to see! Do you like looking at stars?
Early Reader · Change the reading level on the articleThe Sun sends light to us. This light comes from far away. It gives us warmth. It helps plants grow food. We use it to see the world. Can you feel the warm sun?
Early Reader · Change the reading level on the articleThe sun comes up in the morning. It looks like it moves. But our Earth is really turning. The sky turns red and orange. This makes the morning look pretty. Do you like to see the sun rise?
Early Reader · Change the reading level on the articleThe sun goes down at night. It moves below the ground. The sky turns red and orange. This happens every day. It is very pretty to see. Do you like to watch the sun go down?
Early Reader · Change the reading level on the articleDark spots live on the Sun. They are not as hot as the rest. These spots come and go. They can stay for a few days. They can stay for months. Can you see them? You need a special tool to look at them.
Early Reader · Change the reading level on the articleSome tools fly in space. They go around the Earth. They pass over us at the same time each day. This helps them take good pictures. The light stays the same. It is very helpful. Can you see the sun?
Early Reader · Change the reading level on the articleGiant bubbles live in space. They are very big. Stars make them grow. Big star winds blow them out. These bubbles hold hot gas. We live near one too! Can you imagine a space bubble?
Early Reader · Change the reading level on the articleSome planets are very big. They are bigger than our Earth. They are not as big as gas giants. These worlds are called super-Earths. They are far away in space. Can you find them in the stars?
Early Reader · Change the reading level on the articleSome stars have very big blasts. These stars shine very bright. They are much brighter than most stars. They can light up the dark sky. It is a huge show! Can you see the light?
Early Reader · Change the reading level on the articleThe moon can look very big. This is a supermoon. It happens when the moon is close to Earth. The moon looks bright and large. You can see it in the night sky. It is a pretty sight. Do you like the moon?
Early Reader · Change the reading level on the articleA big star can blow up. This makes a huge cloud. The cloud spreads out in space. It moves very fast. It helps make new things. Can you see the bright colors?
Early Reader · Change the reading level on the articleSome groups of stars are very big. They are very bright. They have many young stars. These stars help make new things. They are far away in space. Can you look for them?
Early Reader · Change the reading level on the articleSome things in space look bright. A big cloud can look dim. A small star looks very bright. This helps us see far away things. It is fun to look up. Can you see the stars?
Early Reader · Change the reading level on the articleSvetlana was a brave pilot. She flew planes in the sky. She even went into space! She was the first woman to walk in space. This was a big job. We can learn from her. Would you like to fly to space?
Early Reader · Change the reading level on the articleA swift is a type of bird. It can fly very fast. These birds move through the sky. They are fun to watch. You might see one fly by. Do you like fast birds?
Early Reader · Change the reading level on the articleA star shines in the sky. This star gets dim. It goes dark and light. This happens for no clear reason. We use big tools to see it. It is very cool! Can you find it?
Early Reader · Change the reading level on the articleTaqi ad-Din was a smart man. He loved the stars. He built a place to look at the sky. He saw a bright comet. He wrote many books about space. Do you like to look at the stars?
Early Reader · Change the reading level on the articleA giant cloud of light is in space. It looks like a big spider. It is very bright. It can even make shadows! It is a very busy place for stars. Can you see the bright light?
Early Reader · Change the reading level on the articleThere is a star called Tau Ceti. It is a star like our Sun. It is very close to us. It looks steady and calm. We look for life near it. Can you see the stars at night?
Early Reader · Change the reading level on the articleLook at the stars at night. You can see a big bull. It is in the winter sky. The bull has bright stars. Some stars look like eyes. Can you find the bull?
Early Reader · Change the reading level on the articleA mount holds a telescope. It keeps the tool safe. It helps us point at stars. This helps us see far away. It is very helpful. Do you like to look at stars?
Early Reader · Change the reading level on the articleThis is a group of stars. It looks like a tool for seeing far away. It has many bright stars. Some stars are blue and white. Some stars are orange. It is high in the sky. Can you find it?
Early Reader · Change the reading level on the articleThe air around us has light. This light can hide stars. It comes from things like water in the air. This makes it hard to see far away. We must fix this to see well. Can you look at the stars?
Early Reader · Change the reading level on the articleA line divides day and night. This line moves around the Earth. It brings the sun up. It also brings the dark night. You see this at sunrise and sunset. It is a very cool thing. Can you see the line?
Early Reader · Change the reading level on the articleTethys is a moon of Saturn. It is made of bright ice. It looks very white. It has big holes in it. It also has a long crack. Can you see the ice? It is very cold there.
Early Reader · Change the reading level on the articleA man took a photo of Earth. It looks like a blue marble. The Earth is in space. It shows clouds and land. This photo helps us see our home. It is very beautiful. Do you like our blue home?
Early Reader · Change the reading level on the articleA long time ago, a planet hit Earth. This planet was called Theia. It was a big world. The crash sent bits into space. Those bits made our Moon. Now we have a Moon in the sky! Can you see the Moon tonight?
Early Reader · Change the reading level on the articleOur galaxy has a thick part. It is made of old stars. These stars are far from the middle. They help us learn how stars form. It is a big part of space. Do you like to look at stars?
Early Reader · Change the reading level on the articleOur galaxy has a flat part. It is made of stars and dust. Most stars live here. It is where our Sun stays. It is a very big place. Can you look at the stars?
Early Reader · Change the reading level on the articleThomas was a brave pilot. He flew high in space. He even went near the Moon. He helped people from other lands work together. He was a hero to many. Do you like stars?
Early Reader · Change the reading level on the articleThe Moon pulls on our oceans. This makes the water bulge out. The bulge pulls on the Moon. This makes the Moon move away. It also makes our day longer. Can you feel the Moon pulling?
Early Reader · Change the reading level on the articleSpace is not always the same. Some stars change their light. They can get bright or dim. This helps us learn about space. It is very exciting to watch! Do you like to look at the stars?
Early Reader · Change the reading level on the articlePeople have many ideas about space. Some thought the Earth was flat. Others thought it was a round ball. We look at the stars to learn more. It is fun to wonder about the sky. What do you see at night?
Early Reader · Change the reading level on the articleThe world will change a lot. The sun will get very big. It will grow and get red. This will happen far away in time. It is a big mystery. What do you think the sky will look like?
Early Reader · Change the reading level on the articleSome stars grow very big. They get very bright. They look like red giants. We use them to see how far away things are. This helps us learn about space. Do you like looking at stars?
Early Reader · Change the reading level on the articleTitania is a big moon. It goes around Uranus. It is made of ice and rock. The moon has big cracks in it. It looks a little red. It is a cool place to see! Do you like moons?
Early Reader · Change the reading level on the articleA small planet moves in front of the Sun. It looks like a tiny black dot. This happens in May or November. It helps us learn about space. It is very cool to see. Can you find the tiny dot?
Early Reader · Change the reading level on the articleA planet moves in front of the sun. It looks like a small black dot. The dot moves across the bright sun. This helps us learn about space. It is a very cool sight! Do you like looking at the stars?
Early Reader · Change the reading level on the article