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Planetary Science
Lunar Rover Research Challenge
This competition-based space project launching in Fall 2022 will challenge students to design a lunar rover research mission.
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Lunar Rover Research Challenge
Destination Mars
Discover how space agencies have explored the Red Planet in the past and present and learn about the future of human spaceflight to the red planet.
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Destination Mars
Meet Our Dwarf Planets
Learn about the dwarf planets in our Solar System.
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Meet Our Dwarf Planets
The Outer Solar System
Learn about the amazing planets and moons of the outer Solar System.
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The Outer Solar System
How can I tell which way is north at night?
Do you like to look at the stars? What can you identify in the night sky? Try finding some important constellations tonight!
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How can I tell which way is north at night?
Space Videos
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Space Videos
Escape Velocity
Why do a baseball and a rocket need the same launch speed to get from Earth into space? It has to do with physics and gravitational force.
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Escape Velocity
Searching for exoplanets around the star next door
In planetary science, astronomers have found planets that orbit other stars, just like Earth orbits the Sun. Some of them might even be able to support life.
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Searching for exoplanets around the star next door
Where Can We Find Asteroids and Comets?
This backgrounder explains the difference between planets, dwarf planets and small solar system bodies, such as asteroids and comets.
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Where Can We Find Asteroids and Comets?
Why is it colder in the winter even though the Earth is closer to the Sun?
Learn why we have seasons in this hands on activity.
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Why is it colder in the winter even though the Earth is closer to the Sun?
What would happen if a meteor hit Earth?
Explore the effects of asteroid impacts in this hands on activity.
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What would happen if a meteor hit Earth?
What is your weight on another planet?
Do you weigh the same on Jupiter as you do on Earth? Learn to calculate your weight on a different planet.
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What is your weight on another planet?