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A Step Towards Mars
Practice makes perfect, and when sending humans to Mars, you definitely want things to be perfect. Through simulated missions in Mars Dune Alpha—an isolated, 1,700-square-foot, 3D-printed habitat at Johnson Space Center—NASA can gather data on a variety of human exploration factors, such as physical and behavioral health and performance.
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Pretty in Pink
The perfectly picturesque spiral galaxy known as Messier 81, or M81, looks sharp in this composite from NASA’s Spitzer and Hubble Space Telescopes and NASA’s Galaxy Evolution Explorer.
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Explore our changing planet
For more than 50 years, NASA satellites have provided data on Earth’s land, water, air, temperature, and climate. NASA’s Earth Information Center allows visitors to see how our planet is changing in six key areas: sea level rise and coastal impacts, health and air quality, wildfires, greenhouse gases, sustainable energy, and agriculture.
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