Voyager Golden Record
We sent a special gift to space. It is a gold disk. It has sounds and pictures on it. It tells a story of our world. It is for friends in the stars. Do you want to see it?
Early Reader · Change the reading level on the articleSpace articles — Page 24
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 24 of 24
Wally Schirra
Wally Schirra was a brave pilot. He flew planes in the sky. He also flew to space. He went to space three times! This helped us learn about the stars. Do you want to fly to space too?
Early Reader · Change the reading level on the articleWalter Baade
Walter Baade looked at the stars. He found many rocks in space. He also learned how big the sky is. His work helps us know the world. He was a great thinker. Can you look at the stars tonight?
Early Reader · Change the reading level on the articleWarm–hot intergalactic medium
Hot gas sits in space. It is between the stars. It is very thin. It helps us find things. It is a big web. Can you see it?
Early Reader · Change the reading level on the articleWeak gravitational lensing
Big things in space bend light. This light makes far things look stretched. We can use this to find mass. It helps us see things that are hidden. It is like a magic trick. Do you like looking at stars?
Early Reader · Change the reading level on the articleWesterhout 40
New stars are born in a big cloud. This cloud is very far away. It has many bright stars inside. These stars are very young. They make the cloud glow. Can you see the stars?
Early Reader · Change the reading level on the articleWhite hole
A white hole is a space idea. It is like a black hole. But it works the opposite way. Things can come out of it. You cannot go inside it. It is very strange! Can you imagine it?
Early Reader · Change the reading level on the articleWide-field Infrared Survey Explorer
A space tool looks at the sky. It sees things in the dark. It finds rocks and stars. This helps us stay safe. It is a great helper. Do you like looking at stars?
Early Reader · Change the reading level on the articleWilkinson Microwave Anisotropy Probe
A special tool flies in space. It looks at the sky. It finds heat from a long time ago. This helps us know how old the world is. It is very cool! Do you like stars?
Early Reader · Change the reading level on the articleWilliam Alfred Fowler
A man named William studied stars. He found out how stars make things. He found how stars make the parts of our world. This work helped us learn a lot. He won a big prize for his work. Do you like to look at the stars?
Early Reader · Change the reading level on the articleWilliam Anders
William Anders was a brave pilot. He flew a ship to the Moon. He saw the Earth rise up. It was a beautiful sight. His photo helps us love our home. Do you like to look at the stars?
Early Reader · Change the reading level on the articleWilliam Huggins
William was a man who loved stars. He looked at the sky at night. He used big tools to see far away. He learned many things about space. This helps us know our world. Do you like to look at stars?
Early Reader · Change the reading level on the articleWilliamina Fleming
Williamina was a star worker. She looked at the night sky. She found many new stars. This helps us know the sky. She was very smart. Do you like to look at stars?
Early Reader · Change the reading level on the articleWinter solstice
The sun stays low in the sky. This is the shortest day. It is also the longest night. The sun starts to stay out longer after this. It is a special time for many people. Do you like the long night?
Early Reader · Change the reading level on the articleWISE 0855−0714
There is a very cold thing in space. It is not a bright star. It stays dark and dim. It feels like the air in your room. It is very far away from us. Can you find it in the sky?
Early Reader · Change the reading level on the articleW. M. Keck Observatory
Big tools look at the stars. They sit on a tall hill. They help us see far away. These tools help us learn about space. It is so much fun to look up! Do you like the stars too?
Early Reader · Change the reading level on the articleWormhole
A wormhole is like a secret tunnel. It could link two far places. It might even link two different times. This would help us travel fast. We do not know if they are real. Do you think they are real?
Early Reader · Change the reading level on the articleXMM-Newton
A big tool flies in space. It looks at stars. It finds bright light in the dark. This light helps us learn. It is a great helper. Do you like looking at stars?
Early Reader · Change the reading level on the articleX-ray astronomy
Some stars give off special light. This light comes from very hot gas. We cannot see it from the ground. The air blocks it. We must use rockets to find it. Can you look at the stars?
Early Reader · Change the reading level on the articleX-ray binary
Two stars dance in space. One star is very small. It pulls stuff from the other star. This makes a bright light. The light is a special kind. We call it an X-ray. Can you see the bright light?
Early Reader · Change the reading level on the articleX-ray pulsar
A star can blink in space. It is part of a pair. One star pulls gas from the other. This gas makes hot spots. The spots shine bright. We see them blink like a light. Do you like to look at stars?
Early Reader · Change the reading level on the articleX-ray telescope
Special tools look at space. They see bright light from far away. This light cannot reach us on Earth. We must send tools up high. They fly in space. This helps us see the stars. Can you look at the stars too?
Early Reader · Change the reading level on the articleYang Liwei
Yang Liwei went to space. He was in a big rocket. He flew around the Earth. This was a big job for him. He is a space hero. Would you like to fly to space?
Early Reader · Change the reading level on the articleYellow supergiant
Some stars are very big. They are called yellow supergiants. These stars are much larger than our sun. They can even grow and change. They are very bright in the sky. Can you look for a bright star tonight?
Early Reader · Change the reading level on the articleYoung stellar object
A star starts out very young. It pulls in bits of dust. It grows bigger and bigger. This helps it become a bright star. It is like a baby star. Do you like to look at stars?
Early Reader · Change the reading level on the articleZenith
Look straight up at the sky. That high point is the zenith. It is the spot right above you. The sun is there at noon. It makes your shadow very small. Can you find the highest point in the sky?
Early Reader · Change the reading level on the articleZeta Ophiuchi
A big star shines in the sky. It is a bright blue color. This star moves fast through space. It makes a shape in the dust. It is very large and hot. We can look for it at night. Can you see it?
Early Reader · Change the reading level on the articleZhang Yuzhe
Zhang Yuzhe looked at the stars. He was a man who studied space. He found new rocks and comets in the sky. This work helps us learn about space. He was a great teacher. Do you like to look at the stars?
Early Reader · Change the reading level on the articleZodiacal light
A soft light glows in the sky. It comes from tiny bits of dust. The sun hits the dust. This makes the light shine. It looks like a fake dawn. Can you see it at night?
Early Reader · Change the reading level on the articleZone of Avoidance
Our sky has a hidden part. Many stars hide what is behind them. Dust and gas block our view. We cannot see some far things. This makes space hard to map. We use special tools to look. Can you find the hidden stars?
Early Reader · Change the reading level on the article