Stars & Galaxies
Stars, Constellations, and Galaxies: A Map of the Sky
Stars, constellations, and galaxies on a sky map are different things. Learn where to find Orion, Sirius, and the Andromeda Galaxy—and what a map shows.
✦ Stars & GalaxiesAbout Stars and Galaxies: Answers About Space
Stars and galaxies: how light helps measure distances, what galaxies are made of, and why telescopes show us the universe as it was in the past.
✦ Stars & GalaxiesTypes of Stars and Galaxies: Classification and Examples
Stars and galaxies are classified by spectrum, temperature, shape, and structure. Explore their classes and examples, from red dwarfs to spiral systems.
✦ Stars & GalaxiesOur Star, the Sun, and the Galaxy: How They’re Connected
The Sun and the Milky Way are connected through the star’s motion and activity. Explore its galactic path and its effects on near-Earth space.
✦ Stars & GalaxiesThe Solar System Among the Stars and Galaxies
The Solar System orbits the center of the Milky Way, within its disk. Explore its place in the galaxy and the interstellar neighborhood beyond.
✦ Stars & GalaxiesGalaxies and Stars: A Journey to the Cosmic Web
Galaxies and stars are bound by gravity: from an individual star’s spectrum, astronomers move on to the structure of galaxies and the cosmic web.
✦ Stars & GalaxiesStars and Galaxies: How They Work and Connect
Stars and galaxies are linked by gravity and stellar evolution. Explore how stars are born, what galaxies are made of, and how astronomers study them.
✦ Stars & GalaxiesA Clear Explanation of the Evolution of Galaxy Clusters
Galaxy clusters evolve through gravitational interactions and mergers, altering their structure and gas temperature. This article unpacks key processes shaping
✦ Stars & GalaxiesTypes of Stars and Their Life Cycle Classification
This article explores star classifications by mass and brightness, their life stages from protostars to final phases, and their impact on galaxy structure.
✦ Stars & GalaxiesGalaxy Types and Their Connection to Star Formation Activity
Galaxies are classified by shape—spiral, elliptical, and irregular—which influences their star formation rates and gas distribution.
✦ Stars & GalaxiesImpact of Cosmic Dust on Stars’ Brightness and Colors
Cosmic dust and interstellar contamination dim stars’ light and alter their spectral colors, complicating accurate astronomical measurements and requiring advan
✦ Stars & GalaxiesHow Galaxies Form and Evolve
Galaxies form and evolve primarily through gravitational interactions, mergers, and star formation, shaping their structure and development across cosmic time.