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Inspiring Earth's Next Generation of Explorers Since 2012

Curious Kids Mars

Can humans colonize Mars in the foreseeable future?

September 17, 2025

Curious Kids Earth

How was the Earth built?

September 10, 2025

Curious Kids Universe

Does outer space end – or go on forever?

September 3, 2025

Curious Kids Earth

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

August 27, 2025

Human Spaceflight Mars

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

August 15, 2025

Newest Articles

Special Topic: The Tunguska Event and Other Recent Impacts

Alan Hale June 27, 2020

This Week in History: June 21-27

Alan Hale June 20, 2020

Comet of the Week: 2P/Encke

Alan Hale June 20, 2020

Special Topic: Orbits and Future Returns

Alan Hale June 20, 2020

Shuttlewagon delivers Artemis rocket boosters to KSC

Ken Kremer June 19, 2020

This Week in History: June 14-20

Alan Hale June 13, 2020

Comet of the Week: LINEAR C/2001 A2

Alan Hale June 13, 2020

Special Topic: Lunar and Planetary Impacts

Alan Hale June 13, 2020

Curious Kids

QuizMe: Space Quizzes

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Astronomy

Earth

International Space Station

Lunar Exploration

Mars

Solar System

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Ice and Stone

This Week in History: April 12-18

Comet of the Week: 153P/Ikeya=Zhang P/2002 C1

Special Topic: Prediction of Future Approaches

This Week in History: April 5-11