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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

Why are scientists trying to manufacture organs in space?

Alysson Muotri January 21, 2021

Curiosity celebrates 3,000 days since landing on Mars

Ken Kremer January 17, 2021

China’s Chang’e-5 returns first lunar rock samples since 1976

Ken Kremer January 15, 2021

Preparing for surgeries in space and on Mars

Nina Purvis January 10, 2021

This Week in History: December 27-31

Alan Hale December 27, 2020

Comet of the Week: Kohoutek 1973f

Alan Hale December 27, 2020

Special Topic: Putting It All Together

Alan Hale December 27, 2020

Hydrologist Fadji Maina’s path from Niger to NASA

Lenore Adkins December 22, 2020

Curious Kids

QuizMe: Space Quizzes

Interviews

Word Games & More

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Astronomy

Orion The Hunter

Astronomy: Guide to stargazing for students

Earth

NASA and JAXA launch new satellite to measure global rain and snow

ESA’s Swarm trio monitoring our planet’s magnetic shield

Keeping an eye on launch-day weather

International Space Station

Antares blast off set for mid April

Emily Nelson working to keep astronauts safe aboard the ISS

Lunar Exploration

Mars

HI-SEAS 2: Living on a simulated Mars

Meet the crew of HI-SEAS 2

NASA testing ‘flying saucer’ over Hawaii today

NASA testing supersonic parachute, inflatable decelerator

Solar System

Universe

Ice and Stone

Special Topic: Deflection Strategies

This Week in History: September 6-12

Comet of the Week: 2I/Borisov I/2019 Q4

Special Topic: “Small Bodies” Moons