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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

Tiangong station gives China continuous presence in orbit

Eytan Tepper August 22, 2023

First launch of SpaceX’s Starship was a successful failure

Wendy Whitman Cobb April 27, 2023

ESA’s Juice lifts off to probe secrets of Jupiter’s icy moons

European Space Agency April 14, 2023

NASA announces Artemis II crew as rocket’s core stage completes assembly

Ken Kremer April 5, 2023

Relativity Space launches Terran 1, world’s first 3D printed rocket

Ken Kremer March 28, 2023

Unusual, long-lasting gamma-ray burst challenges theories

Eleonora Troja December 23, 2022

Orion spacecraft with Moon closeup and crescent Earth in distance

Orion takes a selfie on way to Sunday splashdown

Ken Kremer December 8, 2022

orion spacecraft with moon and earth in photo

Orion conducts lunar flyby; captures Earth and Moon in photos

Ken Kremer November 22, 2022

Curious Kids

QuizMe: Space Quizzes

Interviews

Word Games & More

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Astronomy

Hubble, bubble, toil and trouble

Astronomical serendipity

Photographing the planets (part 2)

Cassiopeia: The Queen

Earth

When disaster strikes, space agencies share forecasts

America’s gateway to space: LC-39A

India lofts 104 satellites to set single-launch record

International Space Station

SpaceX Crew Dragon completes successful first mission to ISS

International Space Station’s 20 years of transformation

How do plants adapt to grow in zero gravity?

Falcon 9 ruptures during ascent

Lunar Exploration

Jack King: The Voice of Apollo

Buzz Aldrin: It’s time to colonize the Red Planet

Teams vie for $20 million lunar prize

Mars

Gazing upon Mars

Mars 2020 Mission Overview

Building for Mars

Mars Exploration Historical Timeline

Solar System

Eight essential facts about NASA’s Deep Space Network

Rosetta is deciphering comet’s tale

Rosetta: First mission to orbit and land on a comet

Universe

Planck mission brings universe into sharp focus

Hubble images a ‘Rose of Galaxies’

Space News Briefs – January 2013

Ice and Stone

This Week in History: November 1-7

Comet of the Week: 17P/Holmes

Special Topic: The Death of Comets

This Week in History: October 25-31