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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

Five things that happen to your body in space

Naomi Brooks December 6, 2020

This Week in History: December 6-12

Alan Hale December 5, 2020

Comet of the Week: Lovejoy C/2013 R1

Alan Hale December 5, 2020

Special Topic: “Active Asteroids”

Alan Hale December 5, 2020

This Week in History: Nov. 29 – Dec. 5

Alan Hale November 28, 2020

Comet of the Week: 109P/Swift-Tuttle 1992t

Alan Hale November 28, 2020

Special Topic: Sample Retrieval Missions

Alan Hale November 28, 2020

International Space Station Word Search

Ansh Mishra November 24, 2020

Curious Kids

QuizMe: Space Quizzes

Interviews

Word Games & More

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Astronomy

Earth

Students send experiments  to space on suborbital flight

One year later: Endeavour still awing the people throughout Los Angeles

Juno’s flyby portrait of Earth

International Space Station

Lunar Exploration

Mars

NASA Mars spacecraft reveals a more dynamic Red Planet

Robotic armada is invading Mars from all directions

Generations  of windblown  sediments  on Mars

India launching MOM to study Mars

Solar System

Universe

Ice and Stone

Comet of the Week: Messier C/1769 P1

Special Topic: Interplanetary Dust

This Week in History: August 16-22

Comet of the Week: Levy 1990c