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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

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

Without gravity, what happens to our cells in space?

Andy Tay April 9, 2021

Final SLS Green Run test goes the distance

Ken Kremer March 19, 2021

Soleil Moon Frye wants to take Punky Power into space

Nicole Solomon March 12, 2021

Keeping Earth’s germs from contaminating Mars

Dr. Thomas Cheney March 11, 2021

Curious Kids

QuizMe: Space Quizzes

Interviews

Word Games & More

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Astronomy

The Spitzer Space Telescope: 10 years of viewing the Universe’s dark side

How engineers revamped Spitzer to probe exoplanets

Spitzer: Not a politician; Not a carbonated beverage

David Hearn takes outreach to new level with Kissimmee Park Observatory

Earth

Spaceport America: A convergence of ideas and events

OCO-2 studying the atmosphere

Project Morpheus: Flying a test bed for future landers

International Space Station

Land ho! Expedition 39 returns to Earth

Bigelow’s promise: More space at less cost with inflatable space habitats

Cygnus delivers to the ISS

Tweeting from the ISS

Lunar Exploration

LADEE on mission to study Moon’s thin atmosphere

Gene Cernan: A conversation with the last men on the Moon

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

Mars

NASA’s Martian helicopter enters final test phase for 2020 rover

Opportunity completes record-setting 15 year mission on Mars

ITS: SpaceX’s bold vision for crewed exploration of the solar system

Helo, Mars!

Solar System

Never ending journey: Voyager spacecraft still making discovery near boundary of solar system

Universe

Ice and Stone

Special Topic: Trojan Asteroids

This Week in History: October 4-10

Comet of the Week: Donati 1858 VI

Special Topic: 2008 TC3 and the Almahata Sitta Meteorite