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 7 of 24
Space has tiny bits of stuff. These bits can make new things. They float in big clouds. These clouds help make stars. We look at light to find them. It is like magic! Can you see the stars?
Early Reader · Change the reading level on the articleAn astronomer looks at the sky. They study stars and planets. They see things far away. This helps us learn about space. It is very fun to learn. Do you like to look at stars?
Early Reader · Change the reading level on the articleThis big book tracks the sky. It tells us where stars go. It shows where the moon stays. It helps us see the sun. We can learn about planets too. It is like a map for space. Do you like looking at stars?
Early Reader · Change the reading level on the articlePeople make long lists of things in space. These lists name stars and rocks. They help us find things in the sky. We can use them to look up. They are very helpful. Do you like to look at the stars?
Early Reader · Change the reading level on the articleSpecial glass helps us see space. It can make stars look bright. It helps us see the Moon clearly. These tools help us see far away. It is fun to look up! Do you like to look at stars?
Early Reader · Change the reading level on the articleSpace makes loud sounds. Some things in space send out waves. The Sun sends waves to us. Big stars also send waves. These waves help us learn. Can you hear the stars?
Early Reader · Change the reading level on the articleStars can look like they twinkle. The air moves around. This makes the light look fuzzy. It can even look like tiny dots. This makes it hard to see stars clearly. Do you see the stars twinkle?
Early Reader · Change the reading level on the articleWe can study stars with light. We look at their colors. This shows what stars are made of. It also shows how hot they are. This helps us learn about space. Do you like looking at the stars?
Early Reader · Change the reading level on the articleSpace is very big. We use special ways to measure it. We use the Sun to help us. This helps us know how far things are. It is a great tool for us. Do you like to look at the stars?
Early Reader · Change the reading level on the articleStars and planets move in time. Space experts use a special way to count years. They use a year zero. This helps them do math. It helps them find when eclipses happen. Can you count to zero?
Early Reader · Change the reading level on the articleWe can take pictures of space. Cameras catch light from the stars. This helps us see far away things. Some stars are too dim to see. But a long picture shows them! It is like magic. Do you want to look at the stars?
Early Reader · Change the reading level on the articleSome stars shoot out long beams. These beams move very fast. They come from deep in space. They can be very long. They look like bright lines. Can you see the light?
Early Reader · Change the reading level on the articleSpace has bright lights. These lights come from tiny bits. They act like a strong beam. This beam helps us see far away. It is very cool! Can you find them in the sky?
Early Reader · Change the reading level on the articleSpace has bright lights. Some lights are very hot. They shine in a special way. They can come from stars. They can come from black holes. These lights help us learn. Can you see them?
Early Reader · Change the reading level on the articleThis is a big library for space. It helps people learn about stars. It has many books and papers. This helps us know more about space. It is very cool! Do you like stars?
Early Reader · Change the reading level on the articleSome stars grow very big. They turn bright red. These stars are very large. They can blow out dust. This dust stays around the star. It is a big cloud. Do you like looking at stars?
Early Reader · Change the reading level on the articleJupiter is a giant planet. It has many colorful clouds. The clouds move in stripes. Big storms spin in the air. There is also bright lightning. It is a very big place! Can you see the stripes?
Early Reader · Change the reading level on the articleMars has a layer of air. It is very thin. It is also very cold. This air helps us learn about the planet. It can even have big dust storms. Do you want to visit Mars?
Early Reader · Change the reading level on the articleMercury is a small planet. It has very little air. The Sun pushes the air away. This makes a long tail. It looks like a comet. We use space probes to see it. Do you like looking at stars?
Early Reader · Change the reading level on the articlePluto has air around it. This air is very thin. It is made of cold gases. This air helps keep Pluto warm. It is a very cool place! Do you like cold places?
Early Reader · Change the reading level on the articleUranus is a big, cold planet. It has a lot of air. This air is very cold. The air makes the planet look blue. It is a very far place. Do you like the color blue?
Early Reader · Change the reading level on the articleVenus has a thick layer of air. This air is very hot. It is also very heavy. It feels like being deep under water. The clouds cover the whole planet. It is a wild place! Do you want to visit?
Early Reader · Change the reading level on the articleLook at the stars at night. You can see a shape called Auriga. It looks like a driver in a chariot. It has a very bright star. This star helps us find it. Can you find it in the sky?
Early Reader · Change the reading level on the articleThe Earth slowly wobbles. It moves like a spinning top. This takes a very long time. It takes many years. The stars in the sky look different. We can watch the stars change. Do you like to look at stars?
Early Reader · Change the reading level on the articleOur Earth is not straight up. It leans to one side. This lean makes our seasons. It gives us summer and winter. This helps us live here. Can you feel the sun?
Early Reader · Change the reading level on the articleEverything we see is made of stuff. This stuff is called matter. Long ago, there was also something called anti-matter. They used to fight and go poof! But a little bit of matter stayed behind. This made our whole…
Early Reader · Change the reading level on the articleThe stars and galaxies make a map. Long ago, the sky had ripples. These ripples were like sound waves. They helped make the big space we see. We use them to measure the sky. Can you look up at the stars?
Early Reader · Change the reading level on the articleThe world is made of stuff. Most stuff is matter. Some stuff is called antimatter. They are almost the same. But we have more matter. This is a big mystery! Can you wonder why?
Early Reader · Change the reading level on the articleMany stars live together in a group. It looks like a small cloud. This group is called the Beehive. It is far away in the sky. You can see it at night. It is very pretty. Do you like looking at stars?
Early Reader · Change the reading level on the articleYou can see a pink glow in the sky. It happens when the sun goes down. It looks like a pink arch. This glow stays in the air for a while. It is very pretty to see. Do you like pink skies?
Early Reader · Change the reading level on the articleBenjamin Banneker was a smart man. He studied the stars. He also made a clock. He helped draw lines for a new city. He worked very hard. Do you like to look at stars?
Early Reader · Change the reading level on the articleSome stars have a bright glow. This glow comes from a ring of gas. The star spins very fast. This helps the gas fly out. It looks like a disk. It is a special sight. Do you like looking at stars?
Early Reader · Change the reading level on the articleThere is a group of three stars. They shine very bright in the night sky. One star is called Hadar. These stars help us find our way. They look like tiny lights far away. Can you find them in the sky?
Early Reader · Change the reading level on the articleBeta Pictoris is a bright star. It is very far away. It has big planets near it. These planets move around the star. There is also lots of dust. It is a very young star. Can you find it in the sky?
Early Reader · Change the reading level on the articleA ship can move in space. It uses engines to change paths. It can take a long way. This way uses less fuel. It takes a long time to fly. Do you like space?
Early Reader · Change the reading level on the articleA long time ago, the world began. It was very hot. Small bits joined to make new things. This made the air and stars. It helps us know our home. Do you like to look at the stars?
Early Reader · Change the reading level on the articleSome think the universe might shrink. It could pull back together. This would make a big fireball. Everything would get very hot. It might even start again. Do you think the stars will dance?
Early Reader · Change the reading level on the articleLook up at the night sky. Seven bright stars make a shape. It looks like a big spoon. Some people see a wagon. Others see a bear. It helps us find our way. Can you find it too?
Early Reader · Change the reading level on the articleThe stars may one day pull apart. Space could grow too fast. It might tear everything into tiny bits. This would happen a long time from now. We can still look at the stars today. Do you like to look at the sky?
Early Reader · Change the reading level on the articleTwo stars dance in space. They spin and move around each other. One star acts like a clock. It sends out quick ticks. These ticks help us see the stars. It is a busy dance. Can you imagine it?
Early Reader · Change the reading level on the articleA black dwarf is a cold star. It used to be bright and hot. Now it has no light left. It stays dark in space. It is hard to find. Can you imagine a dark star?
Early Reader · Change the reading level on the articleA bright light sits far away. It is not a star. It is a big part of a far galaxy. This light can get very bright. It can also get dim. It helps us learn about space. Can you see the bright light?
Early Reader · Change the reading level on the articleSome stars in space are very special. They change how bright they are. These bright spots live in big groups of stars. They can look very bright to us. Can you look at the night sky?
Early Reader · Change the reading level on the articleSome stars are big and blue. They are very hot. These stars are hard to find. They do not live for a long time. They look bright in the night sky. Can you see a bright star?
Early Reader · Change the reading level on the articleSome stars look very blue. They are bright and new. These stars live in big groups. They grow by touching other stars. They might even bump into them! This makes them big and strong. Do you like looking at the stars?
Early Reader · Change the reading level on the articleSome stars are very big and bright. They are much larger than our Sun. These stars are very hot too. They shine with a blue light. They help light up the dark sky. Can you find a bright star?
Early Reader · Change the reading level on the articleDark clouds hide in space. These clouds are made of dust and gas. New stars grow inside them. They are very cold. They help make many stars. Can you see them in the dark?
Early Reader · Change the reading level on the articleA bolide is a bright light in the sky. It looks like a big fireball. It can even make a loud boom. Some are very, very bright. They can make a big hole in the ground. Have you seen a bright star move fast?
Early Reader · Change the reading level on the article