Planetary Nebula
A planetary nebula is a glowing shell of gas and plasma that is formed by a star during the last stages of its life. As the star runs out of fuel, it sheds its outer layers, which are then ionized by the intense ultraviolet radiation from the hot core of the star. This ionization causes the gas to glow, creating a beautiful and intricate structure that can be observed with telescopes. Planetary nebulae are important objects for studying the late stages of stellar evolution, as they provide clues about the fate of stars like our Sun. They also play a role in the chemical enrichment of the interstellar medium, as the gas and dust that is ejected from the star during the planetary nebula phase can be incorporated into new stars and planets.
Your Previous Searches
Random Picks
- Flavors: In space and astronautical engineering, flavors refer to the different types of rocket propellants used for space missions. These propellants can be classified into two main categories: liquid and solid. Liquid propellants are typically a c ... Read More >>
- Cyclic Loading: Cyclic loading is the repeated application of loads to a structure or material. In the context of space and astronautical engineering, cyclic loading can occur due to the vibration and thermal cycling experienced by spacecraft during launch ... Read More >>
- Viruses: In the context of space and astronautical engineering, viruses refer to the potential biological contaminants that may exist on spacecraft and other space equipment. These viruses can pose a significant risk to the health and safety of astr ... Read More >>
Top News
Bestselling author explains the science of happiness: "You can do the work"...
Bestselling author and Harvard professor Arthur Brooks opens up about how enjoyment, satisfaction and meaning in life can increase a person's wellbeing....
News Source: CBS News on 2024-11-18
November's full moon, known as the Beaver Moon, is the last supermoon of 2024. H...
November's full moon, known as the Beaver Moon, is the last supermoon of 2024. Here's when it peaks and why it's called the Beaver Moon....
News Source: CBS News on 2024-11-15
You can't put a price on the sense of awe particle physics inspires...
Astronomy and particle physics are no longer seen as vital by the US establishment, so funding has fallen. But our work creates a sense of wonder, and wonder matters, says Chanda Prescod-Weinstein...
News Source: New Scientist on 2024-11-13
If you want to stretch your gift game into days this holiday, check out these ad...
The advent calendar phenomenon is growing every year, with so many exciting, fun, beautiful, and delicious options available...
News Source: ABC News on 2024-11-04
November brings a bonanza of meteor showers...
November brings a skywatching bonanza, with three meteor showers — the Southern Taurids, Northern Taurids and Orionids — offering chances to see shooting stars....
News Source: NBC News on 2024-11-02