Galaxies - Page 4

Galaxies are massive systems that consist of stars, stellar remnants, interstellar gas, dust, and dark matter, bound together by gravitational forces. They can range in size from billions of stars to just a few hundred million, and they can vary in shape and structure: the main types are spiral, elliptical, and irregular galaxies. The Milky Way is the galaxy that contains our solar system. Galaxies are fundamental building blocks of the universe, and they can contain various astronomical phenomena such as nebulae, star clusters, and black holes. The study of galaxies is crucial for understanding the formation, evolution, and dynamics of the universe as a whole.
NASA’s Legacy in Space: New Frontiers Await
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NASA’s Legacy in Space: New Frontiers Await

NASA’s journey through the cosmos is replete with iconic missions that have redefined human understanding of the universe. From Apollo’s groundbreaking moon landings to the awe-inspiring images captured by the Hubble Space Telescope, each mission has paved the way for future exploration.
23 January 2025
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