Spiral Galaxy
A spiral galaxy is a type of galaxy characterized by a central bulge surrounded by a flat, rotating disk of stars and interstellar matter, with arms that spiral outward from the center. These arms contain young, hot stars, as well as gas and dust that are actively forming new stars. Spiral galaxies are thought to be the most common type of galaxy in the universe, and they come in a variety of sizes and shapes. The Milky Way, our own galaxy, is a spiral galaxy.
Your Previous Searches
Random Picks
- Infrared Radiation (IR): Infrared radiation (IR) is a type of electromagnetic radiation with wavelengths longer than those of visible light, but shorter than those of radio waves. In space and astronautical engineering, IR is used for a variety of purposes, includi ... Read More >>
- Projectile Acceleration: Projectile acceleration refers to the rate of change of velocity of a projectile as it moves through space. In space and astronautical engineering, this term is often used to describe the acceleration of spacecraft as they are launched into ... Read More >>
- Shock Tests: Shock tests are a series of tests conducted on spacecraft and their components to ensure their ability to withstand the mechanical shocks and vibrations experienced during launch, landing, and other mission events. These tests involve subje ... Read More >>
Top News
First close-up image of a star beyond our galaxy may reveal impending supernova...
Astronomers have taken the first close-up image of a star beyond our galaxy, and it’s a “monster star” surrounded by a cocoon as it slowly dies....
News Source: CNN on 2024-11-21
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