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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

Can plant seeds survive the radiation of space?

Gina Misra November 22, 2020

This Week in History: November 22-28

Alan Hale November 21, 2020

Comet of the Week: ISON C/2012 S1

Alan Hale November 21, 2020

Special Topic: Close Asteroidal Encounters

Alan Hale November 21, 2020

Meet the Astronauts for the Crew-1 Mission

Sherry Valare November 15, 2020

This Week in History: November 15-21

Alan Hale November 14, 2020

Comet of the Week: 29P/Schwassmann-Wachmann 1 1927j

Alan Hale November 14, 2020

Special Topic: Comets and Meteor Showers

Alan Hale November 14, 2020

Curious Kids

QuizMe: Space Quizzes

Interviews

Word Games & More

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Astronomy

Earth

Cassini images Earth beneath Saturn’s rings

Masten’s Xombie rocket tests new precision landing software

Soot likely played a role in 1800s glacier retreat

International Space Station

Lunar Exploration

Mars

NASA’s MAVEN orbiter set to launch on quest to study Mars atmosphere

The Mars Society: Humans to Mars in a decade

Inspiration Mars plans for human slingshot

Mars One betting colonizing planet will be great television

Solar System

Universe

Ice and Stone

Special Topic: The “Building Blocks” of Life

This Week in History: August 9-15

Comet of the Week: Mrkos 1957d

Special Topic: Small Planetary Moons