検索キーワード： 天文学・宇宙

Many things look very different seen up close. To us, the sun is a giant ball of light in the sky, but to other solar systems, it might look like just another star! Those tiny lights you see in the night sky are what our sun might look like from another planet far out in space. The sun gives light and energy to our entire solar system, and is necessary for many other things. Can you name them all?

Where do all the metals on earth come from? They were all made by stars! In this science story, you'll discover how the fusion of atoms in dying stars in space creates enough heat and energy to make metals.

Over time, cultures from around the world have given us many different myths about our home galaxy. When you look up at the sky at night, what stories would you tell about what you see?

Our sun is great at shining down light and heat on earth, but was the sun always that bright? With the help of gravity, the sun is eventually able to produce enough energy to give off light. Our sun has kept this up for four billion years and will keep shining for another five billion years!

One way astronomers search for planets is by looking for the shadows they cast in front of stars.

The Sun is our closest star. Stars produce heat, light, and do not orbit other celestial objects.

How can the moon or sun seem to disappear right before our eyes? When the moon, the Earth, and the sun align just right in their orbits, they can cause a solar or lunar eclipse! Find out how light and shadow work together to trigger these cool events.

Beliefs about the shape of the earth have varied over the millennia, but the Ancient Greeks were able to observe that our planet is round and even Eratosthenes attempted to measure its size. It was not until explorers had fully charted the globe that most people were really able to comprehend its spherical shape.

Anna must wake up late and struggle to keep warm outside so she can watch a meteor shower.

Who knows what is at the end of a black hole? Astrophysicists!

Galileo used his telescope to discover new and marvelous mysteries in the night sky!

Are there more than 13 planets in our solar system? Learn how astronomers categorize the objects out in space.

If scientists found a way to live on a different planet, would they tell people they could live there and make it a new Earth?

Astronomers have discovered a distant planet that can possibly sustain life. The planet is known as Earth and is inhabited by humans! Children will enjoy seeing how aliens might imagine the shapes and colors of Earth's creatures.

The real-life Cinderella story of the very first professional woman astronomer—Caroline Herschel! Comet Chaser is the thrilling biography of a woman who made a lifetime of incredible contributions to science. She was the first woman to discover a comet, the first officially recognized in a scientific role, and the first to be given a Gold Medal by the Royal Astronomical Society.

Vera Rubin was one of the astronomers who discovered and named dark matter, the thing that keeps the universe hanging together. Throughout her career she was never taken seriously as a scientist because she was one of the only female astronomers at that time, but she didn’t let that stop her. She made groundbreaking and incredibly significant discoveries that scientists have only recently been able to really appreciate—and she changed the way that we look at the universe.

Take flight with the pilots who keep both the skies and land safe. Young listeners will explore their careers, the thrilling technology they use, and the dangers fighter pilots face every day.

Oh hey, guess what? The Sun never stops working to keep things on Earth running smoothly. (That's why it's been Employee of the Month for 4.5 billion years.) So why does the Sun get to be the center of attention? Because it's our solar system's very own star! This funny and factual tale from Awkward Yeti creator Nick Seluk explains every part of the Sun's big job: keeping our solar system together, giving Earth day and night, keeping us warm, and more. In fact, the Sun does so much for us that we wouldn't be alive without it. That's kind of a big deal.

The Hubble Space Telescope was launched in 1990 aboard a Space Shuttle. Since then, it has made over 1.5 million observations.

Peter was born on the east side of Germany, the side that wasn't free. He watches news programs rather than cartoons, and wears scratchy uniforms instead of blue jeans. His family endures long lines and early curfews. But Peter knows it won't always be this way. Peter and his family have a secret. Late at night in their attic, they are piecing together a hot-air balloon—and a plan. Can Peter and his family fly their way to freedom?