Visiting an Asteroid
Our solar system is a busy place. We have the sun, eight planets, at least ve dwarf planets, and more than 170 moons. But we also have millions of comets and asteroids. One of these asteroids is named Bennu. Bennu is large, and it orbits the sun near the Earth’s orbit. is […]
The Sun: More Than An Average Star
There is one object in space that is more important to us on Earth than anything else in the universe. It is a bright star that lies at the very center of our solar system. at star is our sun. It is a huge ball of super hot […]
You’ve probably seen some scary storms with very fast winds. But did you know that over the oceans, spinning storms can create even faster winds? ese storms are called tropical cyclones. Depending on where they happen in the world, these storms also go by other names, like hurricanes (in the North Atlantic Ocean) and typhoons […]
Hubble Space Telescope image of a small part of the universe filled with galaxies. It would take around 25 million pictures like this to cover the whole sky – space is really big!
Image credit: NASA, ESA, H. Teplitz and M. Rafelski (IPAC/ Caltech), A. Koekemoer (STScI), R. Windhorst (Arizona State University), and Z. […]
Thousands of miles beneath our feet, flowing electrons create a powerful force that protects life on Earth. This effect is called a magnetic field. But what creates this magnetic field? Deep, deep below the ground lies center of the Earth, also called its core. It is a place of incredibly high temperatures and pressures. Earth’s […]
With cell phones and the Internet, we’re used to communicating with anyone, anywhere, quickly and easily. But how do scientists communicate with things that aren’t on our planet — such as the Curiosity Rover on Mars? This communication beyond Earth is a bit more complicated.
We communicate with spacecraft using radio signals. Radio signals move at the speed of light. […]
When you look up at the night sky, you see stars and sometimes the moon and the brighter planets. Away from city lights, on a clear night, you might see the beautiful band of the Milky Way stretching across the sky.
Is there anything else up there in space?
There are many beautiful, strange […]
If someone asked you to draw the sun, would you make a little yellow circle with lines coming out of it? That’s fun, but what does the sun look like up close? We can see the shapes and outlines of craters and mountains on the moon, but what about the sun? Does it have rocks […]
Dawn is when the sun rises and a new day begins. You might start thinking about breakfast, too! But Dawn is also the name of an amazing spaceship. NASA named this spacecra Dawn because its purpose is to help understand the beginning of the solar system.
You know there are eight planets, right? […]
By Michael Gregory
National Aeronautics and Space Administration
If you could choose something to look at, what would it be? Maybe to find out if a crab is about to nibble on your toe? Well, if you were really lucky, you might just see a beautiful coral reef.
What is a reef? It’s basically […]