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Inspiring Earth's Next Generation of Explorers Since 2012

Astronomy Milky Way

When you wish upon a star, is it already dead?

July 28, 2025

Curious Kids Universe

How many stars are there in the Universe?

July 25, 2025

Curious Kids Moon

Why do some planets have moons and others don’t?

July 24, 2025

Curious Kids Earth

How has the inside of the Earth stayed hot for billions of years?

July 23, 2025

Curious Kids Mars

Is Mars really as red as people say it is?

July 22, 2025

Newest Articles

New theory explains how water first arrived on Earth

Quentin Kral May 7, 2025

Why meteorites have less water than the asteroid bits returned by space probes

Patrick Shober May 5, 2025

Extraordinary evidence needed to claim discovery of extraterrestrial life

Chris Impey April 29, 2025

Potential sign of life found on a distant planet and why many are still skeptical

Daniel Apai April 20, 2025

Gaia telescope ends mission to create 3D map of Milky Way

Laura Nicole Driessen March 31, 2025

Building blocks of life found within asteroid Bennu

Timothy McCoy January 31, 2025

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

Chris Impey January 25, 2025

Blue Origin’s New Glenn rockets to orbit − a feat 15 years in the making

Wendy Whitman Cobb January 16, 2025

Shelf Space

QuizMe: Space Quizzes

Interviews

Green Bank offers unique view to Dr. Lockman

A conversation with Skylab 4 astronaut Ed Gibson

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

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

Word Games & More

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Astronomy

James Webb’s primary mirror passes test before pandemic suspends work

NASA mission in Senegal promotes scientific discovery

The Great American Solar Eclipse of 2017

Kepler has found Earth’s older, larger cousin

Earth

Meteorites contain clues about geology of Mars

NASA renames HQ in honor of ‘Hidden Figure’ Mary Jackson

James Webb’s primary mirror passes test before pandemic suspends work

International Space Station

Meet the Astronauts for the Crew-1 Mission

Crew Dragon and Falcon 9: The newest way to get to the ISS

What the ISS has taught us about living in space

International Space Station marks 20 years of continuous human presence

Lunar Exploration

QuizMe: Neil Armstrong

India’s Vikram lander remains silent since last moments of lunar descent

Israeli Beresheet lander crashes onto Moon; new mission planned

Mars

USGS astrogeology maps are guiding Mars 2020 mission

Bringing Mars rocks to Earth; scientist explains the tech, goals

UAE and China place missions into Mars orbit mere hours apart

NASA prepares for Seven Minutes of Terror; UAE and China also enroute to Mars

Solar System

Dawn’s rich harvest as Ceres gives up secrets

Mining the sky

OSIRIS-REx is bringing home a piece of an asteroid

Universe

Three reasons why black holes are the scariest things in the Universe

See the first-ever image of a black hole

Planets may rejuvenate around dead stars

An explosive quartet: Supernova ‘multiplied’ by galaxy

Ice and Stone

This Week in History: Nov. 29 – Dec. 5

Comet of the Week: 109P/Swift-Tuttle 1992t

Special Topic: Sample Retrieval Missions

This Week in History: November 22-28