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Hace 1 día · The universe is all of space and time and their contents. It comprises all of existence, any fundamental interaction, physical process and physical constant, and therefore all forms of energy and matter, and the structures they form, from sub-atomic particles to entire galactic filaments.
Hace 2 días · Learn about the universe, the whole cosmic system of matter and energy, from its origin in the big bang to its current expansion and structure. Explore the observable universe, the solar system, the galaxies, and the multiverse with Britannica's articles, videos, and news.
6 de may. de 2024 · Una página web con actividades, juegos y artículos sobre el universo, las galaxias, los planetas, las estrellas y más. Aprende sobre el Big Bang, la materia oscura, el espacio interestelar y otros fenómenos espaciales.
6 de may. de 2024 · The big bang is how astronomers explain the way the universe began. It is the idea that the universe began as just a single point, then expanded and stretched to grow as large as it is right now—and it is still stretching!
20 de may. de 2024 · Learn about the observable universe, the region of space that humans can see with technology, and how it differs from the whole universe. Find out the size, age, and features of the observable universe, and how it expands and changes over time.
14 de may. de 2024 · Unleash your inner astronomer with our interactive sky map, guiding you through the vast expanse of space as you track celestial objects, planets, and constellations. Keep pace with the...
6 de may. de 2024 · A galaxy is a huge collection of gas, dust, and billions of stars and their solar systems. A galaxy is held together by gravity. Our galaxy, the Milky Way, also has a supermassive black hole in the middle. When you look up at stars in the night sky, you’re seeing other stars in the Milky Way.
