A star is a luminous spheroid of plasma held together by self-gravity. [1] The nearest star to Earth is the Sun. Many other stars are visible to the naked eye at night; their immense distances from Earth …

May 2, 2025 · A star’s gas provides its fuel, and its mass determines how rapidly it runs through its supply, with lower-mass stars burning longer, dimmer, and cooler than very massive stars.

Jan 20, 2026 · A star is 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 in the …

The meaning of STAR is a natural luminous body visible in the sky especially at night. How to use star in a sentence.

Though stars may appear static, they rotate and vary in luminosity. There are hundreds of billions of stars in the Milky Way Galaxy alone. Among them is our Sun, the closest star to Earth.

Mar 20, 2019 · These large, swelling stars are known as red giants. But there are different ways a star’s life can end, and its fate depends on how massive the star is.

Star birth can take millions of years and create families of stars. Astronomers see examples of star formation in nebulae throughout our own Milky Way Galaxy and in many other galaxies.

Jan 4, 2021 · It's easy enough to say what a star is: one of those bright pointy things that twinkle in the night sky. But the actual definition of a star is as rich and colorful as the stars themselves.

Interactive night sky map for Milwaukee, Wisconsin, USA. Which planets, stars, constellations, and comets are visible tonight?

Feb 2, 2023 · A star is a giant sphere of extremely hot, luminous gas (mostly hydrogen and helium) held together by gravity. A few examples of well-known stars are Pollux, Sirius, Vega, Polaris, and our …