Nebulae usually consist of Hydrogen and Helium, as these are the most common and stable compounds in theUniverse. The formation of a nebula can occur when a star undergoes a significant change, such as excess fusion in its core. In the case of a planetary nebula, the formation of this dee...
Research from a star called Veil Nebula is being studied by scientists from NASA to discover how it has expanded since the eighteen years it has been pictured. The Veil Nebula was left by a massive star and is one of the best supernova remnants. It was made with a fast-moving wave from...
Most nebula are primarily made of gas, which is able to glow with its own light, creating the colorful displays with which we are familiar . But other nebula — such as the so-called "dark nebula" — are much dustier in their composition, and rather than glowing this dust has...
What is the color of the planet Neptune? Why is Neptune blue? Is there ice on the planet? What characteristics do Neptune and Uranus have in common? Is Neptune a water planet? What are planetary nebula made of? What is Halley's Comet made of? Why are planets beyond Neptune not gas pl...
Areflection nebulais adark nebula. However, it is visible because light from a nearby source is reflected off it, hence its name. The source of the light could be either something behind it, another nebula or a star. A well known Reflection Nebula is theWitch Head Nebulawhere it is refle...
What are planetary nebula made of? What are asteroids made of? What is Lexell's Comet's mass? What event is associated with the Hale-Bopp Comet? What is the Hoba meteorite made of? What is Rigel made of? Which meteor showers are related to Halley's Comet?
Meanwhile, the Crab Nebula has been identified as the result of the 1054 supernova that stunned the ancient world. 'A Supernova Discovery Machine' Some elements are only made in the stellar furnace of a supernova. Obdurate iron is among them, as fusion of heavier elements no longer yields...
Our Solar System is believed to have been anebulaof gas and dust that has existed for many millions of years. An event elsewhere caused our nebula to condense into the Sun, the asteroids and planets we know today. Heavier elements would have had to have come from a dying star. ...
visible.The Orion Nebula is 15 light years across, and is made mostly of hydrogen.When you look at this nebula,you are looking at stars being born.This nebula gets its glow from something called the Trapezium,a cluster of four stars, each thousands of times brighter than our sun.Their ...
Earth is estimated to have formed 4.54 billion years ago from the solar nebula, along with the Sun and other planets.[10] The moon formed roughly 20 million years later. Initially molten, the outer layer of the planet cooled, resulting in the solid crust. Outgassing and volcanic activity pro...