Yahoo España Búsqueda web

Entrar

Search results

  1. spaceplace.nasa.gov › galaxy › enWhat Is a Galaxy? | NASA Space Place – NASA Science for Kids

    Hace 5 días · 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.

  2. www.britannica.com › place › Milky-Way-GalaxyMilky Way Galaxy | Size, Definition, & Facts | Britannica

    Hace 3 días · Milky Way Galaxy, large spiral system consisting of several hundred billion stars, one of which is the Sun. It takes its name from the Milky Way, the irregular luminous band of stars and gas clouds that stretches across the sky as seen from Earth.

  3. Vídeos

    Ver todo

  4. www.britannica.com › science › solar-systemSolar system | Definition, Planets, Diagram, Videos, & Facts

    Hace 2 días · The solar system is situated within the Orion-Cygnus Arm of the Milky Way Galaxy. Alpha Centauri, made up of the stars Proxima Centauri, Alpha Centauri A, and Alpha Centauri B, is the closest star system to the solar system.

  5. science.nasa.gov › solar-system › orbits-and-keplers-lawsOrbits and Kepler’s Laws - NASA Science Kepler's Laws

    2 de may. de 2024 · They describe how (1) planets move in elliptical orbits with the Sun as a focus, (2) a planet covers the same area of space in the same amount of time no matter where it is in its orbit, and (3) a planet’s orbital period is proportional to the size of its orbit.

  6. www.britannica.com › science › galaxyGalaxy | Definition, Formation, Types, Properties, & Facts

    Hace 2 días · What is a galaxy? Are all galaxies the same shape? What are the types of galaxies? What is an example of a Sa galaxy?