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  1. What Is a Nebula? | Facts, Definition, What Are They?, Types

    Nov 5, 2019 · A nebula is a huge cloud of combined gas and dust in space. It can contain hydrogen, helium, and/or plasma. Click for even more facts or information.

  2. Types of Nebulae | Galaxies, Globular & Open Clusters

    Oct 3, 2019 · A typical diffuse nebula is a few hundred light-years across. (NGC 2264 shown; see also the Horsehead Nebula) Planetary Nebulae Planetary nebulae are shells of gas thrown out by some …

  3. Nebulae Facts For Kids | What?, Formation, Importance, Size, Comparison

    Nebulas' size ranges from millions of miles to hundreds of light-years in diameter. Keep reading for more interesting facts perfect for kids.

  4. Orion Constellation | Facts, Information, History & Definition

    Jul 14, 2020 · This nebula can be found a third of a degree from the Horsehead Nebula. NGC 2023 is around 1,467 light-years away from Earth. Monkey Head Nebula The Monkey Head Nebula, …

  5. Andromeda Galaxy Facts - The Nine Planets

    Nov 14, 2019 · The Andromeda galaxy is the largest galaxy in the Local Group, more than twice the size of the Milky Way. Click for even more amazing facts and information.

  6. The Origin of the Solar System l The Big Bang - The Nine Planets

    Sep 25, 2019 · Here is a brief outline of the current theory of the events in the early history of the solar system: A cloud of interstellar gas and/or dust (the “solar nebula”) is disturbed and collapses under …

  7. Monoceros Constellation | Facts, Information, Mythology, History ...

    Aug 17, 2020 · Monoceros is a faint constellation located on the celestial equator. Its name translates to unicorn from Greek. Click for more information.

  8. Sadr (γ Cygni) Star | Facts, Information, History & Definition

    Jul 14, 2020 · The nebula itself is located far away from the star, at a distance of around 4,900 light-years. There is a blue O9-class star that illuminates the nebula, however, it is obscured by interstellar …

  9. Orion Constellation Facts For Kids | Symbolize, Where, Story & Size

    The Orion Nebula cannot be seen by the naked eye, as it is the most distant "star." Betelgeuse is a red, colossal star that has been imaged as a disk in the Hubble Space Telescope. It sometimes even …

  10. Merope Star | Facts, Information, History & Definition

    Jun 12, 2020 · The nebula is also named after Merope and sometimes it is referred to as Tempel’s Nebula – in honor of the German astronomer, Wilhelm Tempel, who discovered it in 1859. The …