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  • What Is a Nebula? | NASA Space Place – NASA Science for Kids
    Nebulae are made of dust and gases—mostly hydrogen and helium The dust and gases in a nebula are very spread out, but gravity can slowly begin to pull together clumps of dust and gas As these clumps get bigger and bigger, their gravity gets stronger and stronger
  • National Aeronautics and Space Administration The Helix Nebula: What is it?
    oxygen atoms in ours bodies were made! The Helix Nebula: What is it? Planetary nebula JnEr1, as seen by GALEX Planetary nebula A21, as seen by GALEX This “Mountains of Creation” image was captured by the Spitzer Space Telescope in infrared light It reveals billowing mountains of dust ablaze with the ¿res of active star formation GALEX
  • Nebula | NASA Space Place – NASA Science for Kids
    Name That Nebula Name that nebula! play; What Is a Nebula? A nebula is a cloud of dust and gas in space How Did the Solar System Form? The story starts about 4 6 billion years ago, with a cloud of stellar dust explore; Gallery of NASA Universe Images Galaxies, nebulae, and supernova remnants to view or print explore; Glossary
  • What Is a Supernova? | NASA Space Place – NASA Science for Kids
    Usually a very dense core is left behind, along with an expanding cloud of hot gas called a nebula A supernova of a star more than about 10 times the size of our sun may leave behind the densest objects in the universe— black holes
  • What Is Dark Matter? | NASA Space Place – NASA Science for Kids
    Just like dark energy, we don’t know a whole lot about dark matter But it seems that 27% of the universe, or about one quarter, is made up of the mysterious stuff Together, dark energy and dark matter make up 95% of the universe That’s almost the whole universe! That only leaves a small 5% for all the matter and energy we know and
  • What Is a Galaxy? | NASA Space Place – NASA Science for Kids
    A galaxy is a huge collection of gas, dust, and billions of stars and their solar systems, all held together by gravity
  • National Aeronautics and Space Administration - NASA Space Place
    ultraviolet image shows the Helix Nebula (also called NGC 7293), one of the largest and oldest planetary nebulae known It is quite close to us in astronomical terms, at around 500 or 600 light years away At about 4 light years across, it is many times larger than our entire solar system The Helix Nebula is the nearest example of what
  • What Are Constellations? | NASA Space Place – NASA Science for Kids
    Many stars, nebulae, and other objects are named after the constellations they are found in For example, meteor showers are named for the constellation where the meteors appear to be coming from So, for example, the Orionids meteor shower, which occurs in October each year, appear to come from the same direction as the constellation Orion the
  • How Did the Solar System Form? - NASA Space Place
    This cloud was part of a bigger cloud called a nebula At some point, the cloud collapsed—possibly because the shockwave of a nearby exploding star caused it to compress When it collapsed, it fell in on itself, creating a disk of material surrounding it
  • Make Stretchy Universe Slime! - NASA Space Place
    What to do: In one bowl, mix 1 2 cup of glue with 1 2 cup of water Stir it together; it will mix nicely Note: You may also use white school glue, but your universe slime will be lightly colored and opaque





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