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Inspiring Earth's Next Generation of Explorers Since 2012

Why on Earth is the planet’s day getting shorter?

August 7, 2025

Curious Kids Solar System

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

August 5, 2025

Astronomy Milky Way

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

August 1, 2025

Curious Kids Earth

Will the Earth last forever?

July 30, 2025

Astronomy Milky Way

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

July 28, 2025

Newest Articles

How many stars are there in the Universe?

Brian Jackson July 25, 2025

Why do some planets have moons and others don’t?

Nicole Granucci July 24, 2025

How has the inside of the Earth stayed hot for billions of years?

Shichun Huang July 23, 2025

Is Mars really as red as people say it is?

David Joffe July 22, 2025

Have we made an object that could travel 1% the speed of light?

Chris Impey July 21, 2025

How high could I jump on the Moon?

Jacco van Loon July 20, 2025

Here’s how we can study interstellar objects passing through solar system

Billy Bryan July 17, 2025

Do photons wear out? How light has ability to travel vast cosmic distances without losing energy

Jarred Roberts July 15, 2025

Curious Kids

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

Will the Earth last forever?

How many stars are there in the Universe?

Why do some planets have moons and others don’t?

How has the inside of the Earth stayed hot for billions of years?

Is Mars really as red as people say it is?

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

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

Mars Exploration Word Search

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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

Why on Earth is the planet’s day getting shorter?

Will the Earth last forever?

How has the inside of the Earth stayed hot for billions of years?

International Space Station

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

Northrop Grumman to launch its 16th resupply mission to the ISS

Without gravity, what happens to our cells in space?

Lunar Exploration

Why do some planets have moons and others don’t?

How high could I jump on the Moon?

Our moon has been drifting away from Earth for 2.5 billion years

Mars

Is Mars really as red as people say it is?

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

Where does Mars exploration stand a decade removed from ‘The Martian’ release?

Scientists discover ancient buried beach on Mars

Solar System

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

Here’s how we can study interstellar objects passing through solar system

Another puzzling interstellar object spotted whizzing through solar system

Universe

How many stars are there in the Universe?

Here’s how we can study interstellar objects passing through solar system

Do photons wear out? How light has ability to travel vast cosmic distances without losing energy

Where is the center of the universe?

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