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Inspiring Earth's Next Generation of Explorers Since 2012

Curious Kids Universe

What is the smallest thing in the Universe?

March 10, 2026

Curious Kids Universe

How do atoms – the building blocks of everything – form?

March 4, 2026

NASA announces major changes to Artemis lunar mission plans

March 1, 2026

Human Spaceflight Mars Milky Way Moon Universe

2026 is poised to be an exciting year for space exploration

February 27, 2026

Curious Kids Earth

Why does the Earth spin?

February 25, 2026

Newest Articles

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

Ari Koeppel September 26, 2025

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

Benjamin L. Emerson September 24, 2025

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

Amy J. Williams September 22, 2025

Can humans colonize Mars in the foreseeable future?

Anita Sengupta September 17, 2025

How was the Earth built?

Alexander E. Gates September 10, 2025

Does outer space end – or go on forever?

Jack Singal September 3, 2025

Why does everything look flat even though the Earth is round?

Kelly R. MacGregor August 27, 2025

Nuclear rockets are twice as fast – but designing them isn’t easy

Dan Kotlyar August 15, 2025

Curious Kids

How could an explosive Big Bang be the birth of our universe?

What is space made of? Explaining the components from radiation to dark matter

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

Can humans colonize Mars in the foreseeable future?

How was the Earth built?

Does outer space end – or go on forever?

QuizMe: Space Quizzes

Interviews

Jim Adams: Keeping NASA’s technology on the right track

Kim Lichtenberg spends her days sampling Martian soil and rocks

Jackee Mohl looks to the future as a structural engineer for Boeing’s V-22 Osprey

Wonders of the Cosmos: Neil deGrasse Tyson answers readers’ questions

Word Games & More

Word Find • March 2017

Word Find • September 2016

Kerbal Space Program: Bringing rocket science to games

National Flight Academy makes learning an adventure

MoonBots Challenge inspiring kids

Students learn about physics from energetic demonstrations

Word Search • Skylab Issue

Let’s explore with Orion activity pages

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Astronomy

5 ways families can enjoy astronomy during the pandemic

Four astronomical discoveries from ancient Greece

From the pyramids to Stonehenge – were prehistoric people astronomers?

Go outside and view Comet NEOWISE before it disappears for 6800 years

Earth

Will the Earth last forever?

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

Earth’s magnetic field moves, flips, and protects us from radiation

International Space Station

Getting to sleep in space is hard – and not exactly restful for the mind and body

Why are scientists trying to manufacture organs in space?

Preparing for surgeries in space and on Mars

Five things that happen to your body in space

Lunar Exploration

How high could I jump on the Moon?

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

Landing on the Moon is still an incredibly difficult feat in 2025

Mars

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

Mars may have once had a carbon cycle more favorable for life

Solar System

Voyager 1 thrusters, inoperable for 21 years, fixed from 15 billion miles away

New theory explains how water first arrived on Earth

QuizMe: Our Solar System

Universe

What is space made of? Explaining the components from radiation to dark matter

Does outer space end – or go on forever?

How many stars are there in the Universe?

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

Ice and Stone

Special Topic: “Families” and Groups

This Week in History: December 6-12

Comet of the Week: Lovejoy C/2013 R1

Special Topic: “Active Asteroids”