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  1. Dictionary
    supernova
    /ˈsuːpəˌnəʊvə/

    noun

    • 1. a star that suddenly increases greatly in brightness because of a catastrophic explosion that ejects most of its mass.

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    More definitions, origin and scrabble points

  2. spaceplace.nasa.gov › supernova › enWhat Is a Supernova? | NASA Space Place – NASA Science for Kids

    Nov 8, 2024 · A supernova is the biggest explosion that humans have ever seen. Each blast is the extremely bright, super-powerful explosion of a star. An illustration of one of the brightest and most energetic supernova explosions ever recorded. Image credit: NASA/CXC/M.Weiss.

  3. spaceplace.nasa.gov › nebula › enWhat Is a Nebula? | NASA Space Place – NASA Science for Kids

    Nov 8, 2024 · Some nebulae (more than one nebula) come from the gas and dust thrown out by the explosion of a dying star, such as a supernova. Other nebulae are regions where new stars are beginning to form. For this reason, some nebulae are called "star nurseries."

  4. spaceplace.nasa.gov › search › supernovaSupernova | NASA Space Place – NASA Science for Kids

    Nov 4, 2024 · What Is a Supernova? Learn more about these exploding stars! explore; Glossary. Find definitions of space and Earth science terms

  5. spaceplace.nasa.gov › satellite › enWhat Is a Satellite? | NASA Space Place – NASA Science for Kids

    Nov 8, 2024 · A satellite is anything that orbits a planet or a star. Earth is a satellite orbiting the Sun. The Moon is a satellite orbiting Earth. When you launch a spacecraft into orbit around Earth, that’s a satellite, too. This kind of satellite can help us learn about Earth and the universe.

  6. spaceplace.nasa.gov › volcanoes2 › enWhat Is a Volcano? | NASA Space Place – NASA Science for Kids

    Oct 11, 2024 · The Short Answer: A volcano is an opening on the surface of a planet or moon that allows material warmer than its surroundings to escape from its interior. When this material escapes, it causes an eruption. Lava fountain at Kīlauea Volcano, Hawai`i. Credit: J.D Griggs, USGS.

  7. spaceplace.nasa.gov › black-holes › enWhat Is a Black Hole? | NASA Space Place – NASA Science for Kids

    Nov 8, 2024 · Space is a pretty dark place. Even so, some areas are darker than others. Nothing is darker than a black hole. A black hole is an area of such immense gravity that nothing—not even light—can escape from it. Black holes form at the end of some stars’ lives.

  8. spaceplace.nasa.gov › atmosphere › enEarth's Atmosphere | NASA Space Place – NASA Science for Kids

    Dec 11, 2019 · Earth’s atmosphere is similar to a jacket for our planet. It surrounds our planet, keeps us warm, gives us oxygen to breathe, and it is where our weather happens. Earth’s atmosphere has six layers: the troposphere, the stratosphere, the mesosphere, the thermosphere, the ionosphere, and the exosphere.

  9. spaceplace.nasa.gov › moon-phases › enWhat Are the Moon’s Phases? - NASA Space Place

    Nov 8, 2024 · Some nights, the Moon might look like a narrow crescent. Other nights, the Moon might look like a bright circle. And on other nights, you might not be able to see the Moon at all. The different shapes of the Moon that we see at different times of the month are called the Moon’s phases.

  10. spaceplace.nasa.gov › seasons › enWhat Causes the Seasons? | NASA Space Place – NASA Science for...

    Nov 8, 2024 · The Short Answer: Earth's tilted axis causes the seasons. Throughout the year, different parts of Earth receive the Sun's most direct rays. So, when the North Pole tilts toward the Sun, it's summer in the Northern Hemisphere. And when the South Pole tilts toward the Sun, it's winter in the Northern Hemisphere.

  11. spaceplace.nasa.gov › menu › spaceUniverse | NASA Space Place – NASA Science for Kids

    Nov 8, 2024 · Galaxies, nebulae, and supernova remnants to view or print. Gravity is the force by which a planet or other body draws objects toward its center. Paint pumpkins with space and Earth science designs. Articles, games and activities about our universe.