NASA explains what a nebula is with four incredible pictures

NASA has explained what a nebula is in a new blog post while also showcasing four incredible images of nebulae taken by Hubble.

@JakConnorTT
Published Tue, Nov 2 2021 5:07 AM CDT   |   Updated Mon, Nov 29 2021 5:45 AM CST

NASA is celebrating "Nebula November" and has decided to put out an informative video explaining exactly what nebulae are.

The video is titled "Hubble Field Guide to Nebulae" and has been posted to the NASA Goddard YouTube channel. The video explains that nebulae are comprised of gas and dust, primarily hydrogen and helium. Nebulae exist within the interstellar medium, the space between stars systems, and occur when the region of space has become dense enough to form clouds. The shift in density can occur from gravity pulling in all of the gas and dust in the area or a star spewing its contents out into the region.

According to NASA's blog post, there are several different types of nebulae. One is an "Emission Nebulae", which is appropriately named due to its ability to emit its own light. "Reflection Nebulae" reflect the light from nearby stars as the stars aren't powerful enough to ionize the nebula's gas, as opposed to an emission nebula that is powerful enough. There are also "Planetary Nebulae", "Supernova Remnants", and "Absorption Nebulae". To learn about how each of these nebulae forms and their characteristic features, check out this link here.

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Jak joined the TweakTown team in 2017 and has since reviewed 100s of new tech products and kept us informed daily on the latest science and space news. Jak's love for science, space, and technology, and, more specifically, PC gaming, began at 10 years old. It was the day his dad showed him how to play Age of Empires on an old Compaq PC. Ever since that day, Jak fell in love with games and the progression of the technology industry in all its forms. Instead of typical FPS, Jak holds a very special spot in his heart for RTS games.

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