What Is a Galaxy? | NASA Space Place – NASA Science for Kids
WEBSep 17, 2024 · A galaxy is a huge collection of gas, dust, and billions of stars and their solar systems, all held together by gravity. We live on a planet called Earth that is part of our solar system. But where is our solar system? It’s a small part of the Milky Way Galaxy.
Galaxy - Wikipedia
WEBA galaxy is a system of stars and other celestial objects bound by gravity. Learn about the different types of galaxies, how they are observed and named, and the history of galaxy discovery.
Hubble Lights the Way with New Multiwavelength Galaxy View
WEB4 days ago · The magnificent galaxy featured in this NASA/ESA Hubble Space Telescope image is NGC 1559. It is a barred spiral galaxy located in the constellation Reticulum, approximately 35 million light-years from Earth. The brilliant light captured in the current image offers a wealth of information. This picture is composed of a whopping ten different Hubble images, […]
Galaxies - NASA Science
WEBLearn about galaxies, the largest and smallest structures in the cosmos, and how they are formed and evolve. Find out how NASA studies galaxies with telescopes, missions, and multimedia resources.
Milky Way Galaxy | Size, Definition, & Facts | Britannica
WEBSep 14, 2024 · Learn about the Milky Way Galaxy, a large spiral system of several hundred billion stars, one of which is the Sun. Find out how it got its name, how big it is, and what are its major components, such as globular clusters and interstellar gas.
Galaxy | Definition, Formation, Types, Properties, & Facts
WEB3 days ago · A galaxy is a system of stars and interstellar matter that makes up the universe. Learn about the history, structure, evolution, and types of galaxies, and see examples of spiral, elliptical, and irregular galaxies.
NASA’s Webb Peers into the Extreme Outer Galaxy
WEBSep 12, 2024 · Astronomers have directed NASA’s James Webb Space Telescope to examine the outskirts of our Milky Way galaxy. Scientists call this region the Extreme Outer Galaxy due to its location more than 58,000 light-years away from the Galactic Center. (For comparison, Earth is approximately 26,000 light-years from the center.) A team of scientists used Webb’s NIRCam […]
What’s a galaxy? All you need to know - EarthSky
WEBMay 21, 2024 · A galaxy is a vast island of gas, dust and stars in an ocean of space. Learn about the three main types of galaxies: spiral, elliptical and irregular, and how they differ in size, shape, star...
Galaxies - HubbleSite
WEBJan 31, 2024 · Galaxies are vast cosmic islands of stars, gas, dust, and dark matter held together by gravity. Learn about the three main types of galaxies, the mysterious dark matter that affects their motion, and the galaxy collisions that reveal their history.
The Milky Way Galaxy - Harvard–Smithsonian Center for …
WEBThe galaxy’s spiral arms are part of this disk, where the youngest and brightest stars of the galaxy live. Astronomers study the populations of stars and material between them to …