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 billions of stars. There are more than 2 trillion (1012) galaxies, though most are less than 10% the mass of the Milky Way.
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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 ...
Stars are not scattered randomly through space, they are gathered together into vast groups known as galaxies. The Sun belongs to a galaxy called the Milky Way.
Main sequence stars make up around 90% of the universe's stellar population. They range in luminosity, color, and size – from a tenth to 200 times the Sun's ...
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 ...
A multitude of stars packed together in a dense region of space, shining brightly in Story ...
Feb 7, 2024 · Stars are born in clouds of gas and dust. One such stellar nursery is the Orion Nebula, an enormous cloud of gas and dust many light-years ...
Feb 11, 2022 · The simplest answer may be to estimate the number of stars in a typical galaxy, and then multiply that by the estimated number of galaxies in ...
Mar 20, 2019 · They are the building blocks of galaxies, of which there are billions in the universe. It's impossible to know how many stars exist, but ...