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Oct 22, 2024 · Stars are giant balls of hot gas – mostly hydrogen, with some helium and small amounts of other elements. Every star has its own life cycle, ranging from a few million to …

Apr 2, 2025 · star, any massive self-luminous celestial body of gas that shines by radiation derived from its internal energy sources. Of the tens of billions of trillions of stars composing …

Stars are not spread uniformly across the universe but are normally grouped into galaxies along with interstellar gas and dust. A typical large galaxy like the Milky Way contains hundreds of …

Mar 31, 2025 · The dwarf galaxy NGC 4214 is ablaze with young stars and gas clouds. Located around 10 million light-years away in... The eerie glow of a dead star, which exploded long ago …

Oct 22, 2024 · Types of Stars. The universe’s stars range in brightness, size, color, and behavior. Some types change into others very quickly, while others stay relatively unchanged over …

Dec 11, 2024 · Stars are the most basic building blocks of galaxies. The age, distribution, and composition of stars trace the history, dynamics, and evolution of their galaxy.

Sep 26, 2022 · Stars are giant, luminous spheres of plasma. There are billions of them — including our own sun — in the Milky Way galaxy. And there are billions of galaxies in the …

An interactive 3D visualization of the stellar neighborhood, including over 100,000 nearby stars. Created for the Google Chrome web browser.

Sep 23, 2021 · Stars. A star is a sphere of gas held together by its own gravity. The closest star to Earth is our very own Sun, so we have an example nearby that astronomers can study in …