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6 Min Read NASA’s Chandra Shares a New View of Our Galactic Neighbor The Andromeda galaxy, also known as Messier 31 (M31), is the closest spiral galaxy to the Milky

NASA astronaut Nichole Ayers conducts research operations inside the Destiny laboratory module’s Microgravity Science Glovebox aboard the International Space Station. Credit: NASA Students attending the U.S. Space and Rocket Center

NASA/Bob Hines NASA astronaut Bob Hines took this picture of the waning crescent moon on May 8, 2022, as the International Space Station flew into an orbital sunrise 260 miles

Earth (ESD) Earth Explore Explore Earth Home Air Quality Climate Change Freshwater Life on Earth Severe Storms Snow and Ice The Global Ocean Science at Work Earth Science at Work

5 Min Read What Are Asteroids? (Ages 14-18) What are asteroids? Asteroids are rocky objects that orbit the Sun just like planets do. In fact, sometimes asteroids are called “minor

6 min read Preparations for Next Moonwalk Simulations Underway (and Underwater) With Voyager 2 in the background, John Casani holds a small U.S. flag that was sewn into the spacecraft’s

Editor’s note: This interview was conducted in October 2023.  As the International Space Station approaches 25 years of continuous human presence on Nov. 2, 2025, it is a meaningful moment

6 min read Preparations for Next Moonwalk Simulations Underway (and Underwater) In addition to drilling rock core samples, the science team has been grinding its way into rocks to make