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 15 of 24
A long time ago, the world was new. It was very hot and bright. Tiny bits filled up all the space. These bits made up most of it. This helped the world grow. It is a big story. Can you imagine it?
Early Reader · Change the reading level on the articleLook up at the stars. You can find a hare. It is a group of stars. It sits below a hunter. This group helps us find our way. It is a fun thing to see. Can you find it?
Early Reader · Change the reading level on the articleLook up at the night sky. You can see a group of stars. It looks like a pair of scales. These scales help us see the sky. It is a pretty sight to see. Can you find it?
Early Reader · Change the reading level on the articleThe Moon seems to stay still. But it actually wobbles a little. This lets us see more of it. We can see parts we could not see before. It is like a slow dance. Do you like to look at the Moon?
Early Reader · Change the reading level on the articleMars is a red planet. It is far away. Long ago, it had water. We look for tiny life there. Robots help us find out. Do you want to see Mars?
Early Reader · Change the reading level on the articleWe can watch how stars shine. Some stars get bright and dim. We can see this on a chart. This helps us learn about space. It is like a map of light. Do you want to look at the stars?
Early Reader · Change the reading level on the articleLisa was a pilot. She flew planes in the Navy. She even flew in space! She used big robot arms in space. She worked very hard. Do you want to fly in space too?
Early Reader · Change the reading level on the articleShips in space can move in loops. They follow a special path. This path moves up and down too. It helps tools stay in one spot. It takes a little help to stay on track. Can you imagine flying in a loop?
Early Reader · Change the reading level on the articleLong ago, people in China named the stars. They saw shapes in the night sky. Some stars looked like a palace. Other stars looked like a kitchen. It is fun to look up. Do you like to look at stars?
Early Reader · Change the reading level on the articleTiny bits of stuff live in space. These bits make up big clouds. We use telescopes to find them. They can even make things like water. Space is full of surprises. Can you find them too?
Early Reader · Change the reading level on the articleSpace is very big. Some things are far away. We see very old light. It helps us learn. We can look up. Can you see the stars?
Early Reader · Change the reading level on the articleWe live in a big space bubble. It is a very empty place. Big stars exploded to make it. This helps new stars grow. It is a part of our home. Can you look at the stars tonight?
Early Reader · Change the reading level on the articleSpace has a very big empty spot. It is a giant hole in the stars. Our home is inside this spot. It helps us learn how space grows. We are still learning about it. Do you like looking at the stars?
Early Reader · Change the reading level on the articleOur Sun moves through a big cloud. This cloud is in space. It is very warm. It helps us learn about space. We are moving through it now. Do you like to look at the stars?
Early Reader · Change the reading level on the articleOur home is in a big group. Many galaxies live near us. They move in a similar way. This group is like a long wall. It helps us see space. Can you look at the stars?
Early Reader · Change the reading level on the articleSpace has a very big empty spot. It is called a void. Most stars and galaxies are not there. This makes the spot look empty. It is very, very large. Can you imagine a place with nothing in it?
Early Reader · Change the reading level on the articleOur home is the Earth. It moves through space. We live on the third planet from the Sun. This is a big, amazing place. We are part of a huge web of stars. Do you like to look at the stars?
Early Reader · Change the reading level on the articleMoving in space is hard. It is not like Earth. Astronauts float in the air. This can make muscles weak. They use special tools to stay strong. It helps them stay healthy. Do you want to float like an astronaut?
Early Reader · Change the reading level on the articleWe use many small tools to see the sky. These tools are in many countries. They work together like one big eye. This helps us learn about stars. It is very cool! Can you look at the stars too?
Early Reader · Change the reading level on the articleSome stars live in big groups. These groups are called galaxies. Many galaxies have a bright center. This center can be very hot. It can even make new stars. It is a big, bright place. Do you like looking at the stars?
Early Reader · Change the reading level on the articleSome far away star groups are very dim. They are hard to see. They do not have many bright stars. Most of them are made of dark stuff. This helps us learn about space. Can you find them in the dark sky?
Early Reader · Change the reading level on the articleStars look dim because they are far. We can see how far they are. We look at how bright they seem. This helps us learn about space. It is a big, dark place. Can you see the stars at night?
Early Reader · Change the reading level on the articleSome stars are very big. They are very bright too. These stars change their light. They can have big bursts. They shine bright for a long time. They are amazing to see. Do you like bright stars?
Early Reader · Change the reading level on the articleSome space clouds are very bright. They shine with a special light. This light is hard to see. They make many new stars. This helps them glow. It is a big, bright show. Can you see them?
Early Reader · Change the reading level on the articleA small ship went to the Moon. It was the first thing made by people to touch the Moon. It hit the ground there. This was a big step for us. Can you look at the Moon tonight?
Early Reader · Change the reading level on the articleA space tool went to the Moon. It took new pictures. It saw the side we cannot see. These pictures showed big hills. It helps us learn about space. Do you like the Moon?
Early Reader · Change the reading level on the articleA machine went to the Moon. It landed softly on the ground. It did not sink in the dust. It sent back the first photos. We can see the Moon rocks now. Do you like to look at the Moon?
Early Reader · Change the reading level on the articleThe moon changes its shape each month. Some people use the moon to tell time. They watch the moon to see a new month. This helps us know when months start. It is a way to track time. Can you see the moon tonight?
Early Reader · Change the reading level on the articleThe Moon stays far away. It moves around our Earth. It is not a fixed spot. The Moon moves a little bit away each year. This is a very big trip! Can you see it in the sky?
Early Reader · Change the reading level on the articleThe Moon changes its shape. It moves around our Earth. The sun shines on it. This makes it look bright. You can see it at night. It takes one month to change. Can you see the Moon tonight?
Early Reader · Change the reading level on the articleA moon rover is a car for space. It drives on the Moon. Some have wheels. Some are robots. They help us learn about space. It is so cool! Would you like to drive one?
Early Reader · Change the reading level on the articleThe Moon has a south pole. It has deep holes. These holes stay dark. They hold cold ice. This ice can help us. We can visit the Moon! Do you want to go?
Early Reader · Change the reading level on the articleSome calendars use the sun and moon. They watch the moon to name months. They watch the sun to know the seasons. Most years have twelve months. Some years get an extra month. This helps the months stay in place. Do…
Early Reader · Change the reading level on the articleA robot car went to the Moon. It had eight wheels. It could drive on the Moon dust. It took many pictures for us. It stayed there for a long time. Do you like robots?
Early Reader · Change the reading level on the articleLupus is a group of stars. It looks like a wolf. It is in the southern sky. You can see it at night. It is very pretty to see. Do you like stars?
Early Reader · Change the reading level on the articleSome far away stars shine very bright. They are very old. They look like tiny lights in the dark. These lights help us see the past. They are like clues for us. Can you look at the stars?
Early Reader · Change the reading level on the articleLight travels from far away. It hits clouds of gas. These clouds leave marks in the light. It looks like a big forest. This helps us learn about space. Can you see the marks?
Early Reader · Change the reading level on the articleLyman Spitzer loved the stars. He studied how stars are made. He also liked to climb tall mountains. His ideas help us see space. He was a great scientist. Do you like to look at stars?
Early Reader · Change the reading level on the articleLynx is a group of stars. It looks like a zigzag line. The stars are hard to see. You need good eyes to find them. It is a fun part of the night sky. Can you find it?
Early Reader · Change the reading level on the articleLyra is a group of stars. It looks like a small harp. You can see it in the summer sky. One star is very bright. It is called Vega. Can you find it in the night sky?
Early Reader · Change the reading level on the articleMany star groups live in space. This group is very close to us. It has many bright stars. Some stars pull on each other. This helps new stars grow. It is a big, busy place. Do you like looking at the sky?
Early Reader · Change the reading level on the articleMae Jemison went to space. She was a doctor too. She was the first Black woman in space. This helps us dream big. She is a hero to many. Do you want to visit the stars?
Early Reader · Change the reading level on the articleSome star groups have one arm. They are small. These groups stay near big ones. They look a bit messy. We can see them in the sky. Can you find them?
Early Reader · Change the reading level on the articleA long trail of gas floats in space. It follows two small groups of stars. This trail is very, very long. It helps us learn about space. It is so cool to see! Can you find it in the sky?
Early Reader · Change the reading level on the articleA magnetar is a very strong star. It has a giant pull. It is much stronger than a magnet on your fridge. This star is very special. It can even make bright light. Do you want to see the stars?
Early Reader · Change the reading level on the articleEarth has a space shield. It is made of a force. This force blocks bad rays from the sun. It helps keep our world safe. It works like a big bubble. Do you feel safe on Earth?
Early Reader · Change the reading level on the articleJupiter has a giant force field. It is very big and strong. It protects the planet. It even makes pretty lights in the sky. Can you imagine a force that big?
Early Reader · Change the reading level on the articleSaturn has a giant force field. It is a big space around the planet. This field blocks the wind from the sun. It keeps the planet safe. Can you see the bright lights it makes?
Early Reader · Change the reading level on the article