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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

Wheels in motion for NASA’s newest Mars rover

Ken Kremer March 7, 2021

Venus was once more Earth-like, until its climate dramatically changed

Richard Ernst March 6, 2021

Parker Solar Probe catches unexpected glimpse of surface of Venus

Ken Kremer March 4, 2021

Boeing slates Starliner test flight to ISS; SpaceX readies Crew-2 mission

Ken Kremer February 24, 2021

Perseverance beams back incredible video of landing on Mars

RocketSTEM February 23, 2021

What medicines should we take to Mars?

Nial Wheate February 22, 2021

Perseverance pinpoints landing inside Jezero Crater

Ken Kremer February 19, 2021

American scientist collaborates on UAE’s Mars mission

Christopher Edwards February 17, 2021

Curious Kids

QuizMe: Space Quizzes

Interviews

Word Games & More

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Astronomy

Jupiter: The Gas Giant

The Auroras of Planet Earth

Comets are unpredictable beasts

Catch a falling star: Quadrantids ring in 2014

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

Fiery end for ESA’s ATV Albert Einstein

Antares delivers Cygnus to ISS

Importance of exercise while in orbit

Landing of Expedition 36

Lunar Exploration

Apollo 17: Final voyage to the Moon

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

Mars

Why did Schiaparelli crash during landing?

Skimming an alien atmosphere

Record number of missions at the Red Planet

Methane in the membrane (Producing rocket fuel on Mars)

Solar System

Universe

Ice and Stone

This Week in History: Sept. 27-Oct. 3

Comet of the Week: The Great Comet of 1882

Special Topic: Carbonaceous Chondrites

This Week in History: September 20-26