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.

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 …

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

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 …

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.

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, …

Dec 6, 2019 · R136a1 is the most massive and luminous star ever discovered in the Universe. It is also one of the hottest stars, and it is located in the Large Magellanic Cloud. Key Facts & Summary …

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

Galileo SSI Education Module on Planetary Surfaces a good bibliography of print material about the solar system The Big Questions What is the origin of the solar system? It is generally agreed that it …

Looking to buy the best telescope to view the planets and stars? This review covers the top astronomical telescopes and includes a buyer's guide too!