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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

lunar lander mockup science class

Blue Origin-led team delivers lunar lander mockup to NASA

Ken Kremer August 25, 2020

Four astronomical discoveries from ancient Greece

Gareth Dorrian August 22, 2020

This Week in History: August 23-29

Alan Hale August 22, 2020

Comet of the Week: Messier C/1769 P1

Alan Hale August 22, 2020

Special Topic: Interplanetary Dust

Alan Hale August 22, 2020

SpaceX launch of Crew-1 mission set for Oct. 23

Ken Kremer August 17, 2020

This Week in History: August 16-22

Alan Hale August 15, 2020

Comet of the Week: Levy 1990c

Alan Hale August 15, 2020

Curious Kids

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Astronomy

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International Space Station

Lunar Exploration

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Ice and Stone

This Week in History: June 7-13

Comet of the Week: PANSTARRS C/2017 K2

Special Topic: “Small Bodies” in Culture and Literature

This Week in History: May 31-June 6