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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

Another puzzling interstellar object spotted whizzing through solar system

Darryl Z. Seligman July 6, 2025

Early visions of Mars: 19th-century astronomer used science fiction to imagine the Red Planet

Matthew Shindell July 3, 2025

Where is the center of the universe?

Rob Coyne June 30, 2025

Earth’s magnetic field moves, flips, and protects us from radiation

Ofer Cohen June 26, 2025

Unravelling the mystery behind the Big Bang birth of the universe

Konstantinos Dimopoulos June 23, 2025

Where does Mars exploration stand a decade removed from ‘The Martian’ release?

Ari Koeppel June 20, 2025

The SpaceX Falcon 9 rocket and Crew Dragon capsule stand vertically atop Launch Complex 39A at NASAs Kennedy Space Center in Florida ahead of an aborted launch attempt of the Axiom 4 commercial crew mission to the International Space Station. Credit: Ken Kremer

Axiom-4 commercial astronaut mission to ISS scrubs due to LOX leak

Ken Kremer June 17, 2025

X-rays reveal a mysterious cosmic object never before seen in galaxy

Ziteng Wang June 16, 2025

Curious Kids

How high could I jump on the Moon?

QuizMe: Space Quizzes

Interviews

Jim Adams: Keeping NASA’s technology on the right track

Kim Lichtenberg spends her days sampling Martian soil and rocks

Jackee Mohl looks to the future as a structural engineer for Boeing’s V-22 Osprey

Wonders of the Cosmos: Neil deGrasse Tyson answers readers’ questions

Word Games & More

Word Find • September 2016

Kerbal Space Program: Bringing rocket science to games

National Flight Academy makes learning an adventure

MoonBots Challenge inspiring kids

Students learn about physics from energetic demonstrations

Word Search • Skylab Issue

Let’s explore with Orion activity pages

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Astronomy

5 ways families can enjoy astronomy during the pandemic

Four astronomical discoveries from ancient Greece

From the pyramids to Stonehenge – were prehistoric people astronomers?

Go outside and view Comet NEOWISE before it disappears for 6800 years

Earth

Final SLS Green Run test goes the distance

Four astronomical discoveries from ancient Greece

From the pyramids to Stonehenge – were prehistoric people astronomers?

International Space Station

Preparing for surgeries in space and on Mars

Five things that happen to your body in space

International Space Station Word Search

Can plant seeds survive the radiation of space?

Lunar Exploration

Shuttlewagon delivers Artemis rocket boosters to KSC

Trio of American companies to develop Artemis lunar landers

QuizMe: Project Apollo

Mars

Ingenuity ready for historic first flight on Mars

Keeping Earth’s germs from contaminating Mars

Wheels in motion for NASA’s newest Mars rover

Perseverance beams back incredible video of landing on Mars

Solar System

New theory explains how water first arrived on Earth

QuizMe: Our Solar System

Hubble captures rare self-destructing asteroid

Universe

Extraordinary evidence needed to claim discovery of extraterrestrial life

100 years ago Edwin Hubble settled astronomy’s ‘Great Debate’

Three years of discovery by the James Webb Space Telescope

100 years ago we learned the Milky Way is not the only galaxy

Ice and Stone

Special Topic: “Families” and Groups

This Week in History: December 6-12

Comet of the Week: Lovejoy C/2013 R1

Special Topic: “Active Asteroids”