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Inspiring Earth's Next Generation of Explorers Since 2012

Curious Kids Earth

Why does the Earth spin?

February 25, 2026

Artemis II sending a crew around the Moon to lay groundwork for a future landing

February 20, 2026

Curious Kids Earth Solar System Universe

What is below Earth, since space is present in every direction?

February 17, 2026

Education Word Games

First in Space Crossword

February 12, 2026

Curious Kids Moon

How can there be ice on the Moon?

February 3, 2026

Newest Articles

Artemis 1 rolls out to Pad 39B for launch rehearsal

Ken Kremer March 30, 2022

James Webb Space Telescope being tested on Earth

James Webb Space Telescope: How to send a giant telescope to space – and why

Marcia Rieke December 6, 2021

Star Trek’s William Shatner rides emotional journey to final frontier aboard Blue Origin mission

Ken Kremer October 17, 2021

Inspiration4 mission represents a new type of space tourism

Wendy Whitman Cobb September 15, 2021

antares rocket soars into sky during launch from wallops island, virginia

S.S. Ellison Onizuka on way to ISS after successful launch

Lloyd Campbell August 11, 2021

Northrop Grumman to launch its 16th resupply mission to the ISS

Lloyd Campbell August 7, 2021

color image of pluto taken by nasa's new horizons spacecraft

QuizMe: Pluto

Helen Ko July 11, 2021

Ingenuity ready for historic first flight on Mars

Ken Kremer April 10, 2021

Curious Kids

QuizMe: Space Quizzes

Interviews

Word Games & More

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Astronomy

Top 10 must-see list for new astronomers

Starting in astronomy: Recognising the night sky

Cygnus the swan

Starting in astronomy: Buying your first telescope

Earth

HI-SEAS 2: Living on a simulated Mars

Meet the crew of HI-SEAS 2

NASA testing ‘flying saucer’ over Hawaii today

International Space Station

Importance of exercise while in orbit

Landing of Expedition 36

Launch of Expedition 37 to ISS

From zero to orbital velocity: Dragon delivers to ISS

Lunar Exploration

Harrison Schmitt: A conversation with the last men on the Moon

Apollo 17: Final voyage to the Moon

Why the Moon is bigger closer to the horizon + Moon facts

Mars

Skimming an alien atmosphere

Record number of missions at the Red Planet

Methane in the membrane (Producing rocket fuel on Mars)

Stuck on Mars: Comparing Mars analog simulations to ‘The Martian’

Solar System

Universe

Ice and Stone

Comet of the Week: Delavan 1913f

Special Topic: Comet Tails

This Week in History: September 13-19

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