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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: Carbonaceous Chondrites

Alan Hale September 28, 2020

This Week in History: September 20-26

Alan Hale September 25, 2020

Comet of the Week: Delavan 1913f

Alan Hale September 24, 2020

Special Topic: Comet Tails

Alan Hale September 23, 2020

Twin spacecraft to study “rubble pile” binary asteroids

RocketSTEM September 14, 2020

This Week in History: September 13-19

Alan Hale September 12, 2020

Comet of the Week: 21P/Giacobini-Zinner 1984e

Alan Hale September 12, 2020

Special Topic: Deflection Strategies

Alan Hale September 12, 2020

Curious Kids

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Astronomy

Earth

International Space Station

Lunar Exploration

Mars

Solar System

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Ice and Stone

Comet of the Week: Tebbutt 1861 II

Special Topic: The Tunguska Event and Other Recent Impacts

This Week in History: June 21-27

Comet of the Week: 2P/Encke