Question

what is Galaxy
What is Universe
what is celestial bodies
what is saptarishi mandal


Please help me​

Answer 1

A galaxy is a huge collection of gas, dust, and billions of stars and their solar systems, all held together by gravity.

The universe is all of space and time and their contents, including planets, stars, galaxies, and all other forms of matter and energy. The Big Bang theory is the prevailing cosmological description of the development of the universe.

In astronomy, an astronomical object or celestial object is a naturally occurring physical entity, association, or structure that exists in the observable universe. In astronomy, the terms object and body are often used interchangeably.

Ursa Major is a constellation in the northern sky, whose associated mythology likely dates back into prehistory. Its Latin name means "greater she-bear," referring to and contrasting it with nearby Ursa Minor, the lesser bear.

Answer 2

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• What is Galaxy?

A galaxy is a huge collection of gas, dust, and billions of stars and their solar systems, all held together by gravity. ... It's a small part of the Milky Way Galaxy. A galaxy is a huge collection of gas, dust, and billions of stars and their solar systems. A galaxy is held together by gravity

• What is Universe?

all existing matter and space considered as a whole; the cosmos. The universe is believed to be at least 10 billion light years in diameter and contains a vast number of galaxies; it has been expanding since its creation in the Big Bang about 13 billion years ago.

• What is celestial bodies?

In astronomy, an astronomical object or celestial object is a naturally occurring physical entity, association, or structure that exists in the observable universe. In astronomy, the terms object and body are often used interchangeably.

• What is saptarishi mandal?

The Saptarishi (from Sanskrit: सप्तर्षि saptarṣi, a Sanskrit dvigu meaning "seven sages") are the seven rishis who are extolled at many places in the Vedas and Hindu literature.... They are regarded in the Vedas as the patriarchs of the Vedic religion.