Impact on a 3 Gyr-old Earth-sized planet with a small core Rc = 0.2R and L = 25 km (a) and 100 km (b). In each panel, the left half
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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
A synthetic habitat could be built with the help of a self-growing technology that harnesses local resources and microbes to autonomously form structures on the Red Planet. Credit: Kaitlyn Johnson/Texas
NASA’s Perseverance rover uses an abrading bit to get below the surface of a rocky outcrop nicknamed “Kenmore” on June 10. The eight images that make up this video were
Our exclusive deal means you can safely stream your favorite shows anywhere in the world by saving up to 76%, getting a free Amazon voucher up to $50 and getting
The next astronaut mission to the International Space Station (ISS) will have a very international flavor — literally. That flight — known as Ax-4, because it’s the fourth crewed trip
NASA’s Webb imaged a possible planet with a mass similar to Saturn orbiting the star TWA 7. Light from the star has been subtracted from this image to reveal the
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
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