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Inspiring Earth's Next Generation of Explorers Since 2012

Curious Kids Earth Solar System Universe

What is below Earth, since space is present in every direction?

February 17, 2026

Education Word Games

First in Space Crossword

February 12, 2026

Curious Kids Moon

How can there be ice on the Moon?

February 3, 2026

Curious Kids Moon

Is the Moon drifting away from the Earth?

January 27, 2026

Curious Kids Moon

Why does the Moon look close some nights and far away on others?

January 20, 2026

Newest Articles

How are dark matter and antimatter different?

Dipangkar Dutta January 13, 2026

Why isn’t there any sound in space?

Chris Impey December 10, 2025

Water recycling is key for ISS and Mars missions

Berrin Tansel November 21, 2025

How does the International Space Station stay in low Earth orbit?

Kelly Griendling November 19, 2025

Successful New Glenn launch and landing to broaden spaceflight market

Wendy Whitman Cobb November 15, 2025

What are solar storms and the solar wind?

Yeimy J. Rivera November 14, 2025

Carl Sagan’s scientific legacy extends far beyond ‘Cosmos’

Jean-Luc Margot November 7, 2025

What is the universe expanding into if it’s already infinite?

Nicole Granucci November 5, 2025

Curious Kids

What is below Earth, since space is present in every direction?

How can there be ice on the Moon?

Is the Moon drifting away from the Earth?

Why does the Moon look close some nights and far away on others?

How are dark matter and antimatter different?

Why isn’t there any sound in space?

QuizMe: Space Quizzes

color image of pluto taken by nasa's new horizons spacecraft

QuizMe: Pluto

QuizMe: Mars Exploration

QuizMe: Mars, The Red Planet

QuizMe: SpaceX

QuizMe: Hubble Space Telescope

QuizMe: Project Apollo

QuizMe: Neil Armstrong

QuizMe: Our Solar System

Interviews

Soleil Moon Frye wants to take Punky Power into space

Bringing Mars rocks to Earth; scientist explains the tech, goals

Al Worden on the honor of being an astronaut

Tim Peake ready to become United Kingdom’s official ISS resident

Word Games & More

First in Space Crossword

Voyager Missions Word Search

Stay busy with NASA’s Artemis coloring and activity pages

Artemis I Mission Word Search

International Space Station Word Search

New NASA Posters Feature Cosmic Frights for Halloween

Ice and Stone 2020 Word Search #3

Project: Make a paper Mars helicopter

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Astronomy

Twinkling star reveals the secrets of plasma structures in our cosmic neighbourhood

When you wish upon a star, is it already dead?

Another puzzling interstellar object spotted whizzing through solar system

Early visions of Mars: 19th-century astronomer used science fiction to imagine the Red Planet

Earth

What is below Earth, since space is present in every direction?

Why does a rocket have to go 25,020 mph to escape Earth?

How was the Earth built?

International Space Station

Water recycling is key for ISS and Mars missions

How does the International Space Station stay in low Earth orbit?

The SpaceX Falcon 9 rocket and Crew Dragon capsule stand vertically atop Launch Complex 39A at NASAs Kennedy Space Center in Florida ahead of an aborted launch attempt of the Axiom 4 commercial crew mission to the International Space Station. Credit: Ken Kremer

Axiom-4 commercial astronaut mission to ISS scrubs due to LOX leak

antares rocket soars into sky during launch from wallops island, virginia

S.S. Ellison Onizuka on way to ISS after successful launch

Lunar Exploration

How can there be ice on the Moon?

Is the Moon drifting away from the Earth?

Why does the Moon look close some nights and far away on others?

Mars

Successful New Glenn launch and landing to broaden spaceflight market

The tools Perseverance used to spot a potential sign of ancient life

Potential biosignature detected on Mars – What are these traces of life?

Can humans colonize Mars in the foreseeable future?

Solar System

What is below Earth, since space is present in every direction?

Humanity needs nuclear-powered rockets to explore Mars and beyond

In what order did the planets in our solar system form?

Universe

What is below Earth, since space is present in every direction?

How are dark matter and antimatter different?

Why isn’t there any sound in space?

What is the universe expanding into if it’s already infinite?

Ice and Stone

This Week in History: December 27-31

Comet of the Week: Kohoutek 1973f

Special Topic: Putting It All Together

This Week in History: December 20-26