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 …

May 2, 2025 · Astronomers call stars that are stably undergoing nuclear fusion of hydrogen into helium main sequence star s.This is the longest phase of a star’s life. The star’s luminosity, …

A star is a massive, luminous ball of plasma that is held together by its own gravity. The nearest star to Earth is the Sun, which is the source of most of the energy on Earth. Other stars are …

STAAR. STAAR is the state's testing program and is based on state curriculum standards in core subjects including RLA, mathematics, science, and social studies.

Apr 10, 2025 · At the lower end, and to the bitter end, defining a star is tougher than you might expect

What Is a Star and How Does It Work? - ThoughtCo

Jun 11, 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 …

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

Reconstructed view of the surface of the star Antares in the constellation of Scorpius A star-forming region in the Large Magellanic Cloud. NASA/ESA image The open star cluster Pismis …

Jul 15, 2014 · We're all pretty familiar with stars. We see them on most clear nights as tiny, twinkling pinpricks of light in the sky. Stars are the topic of countless poems, stories, and …