GENERAL KNOWLEDGE

Detailed explanation-1: -The Milky Way is a barred spiral galaxy around 13.6 billion years old with large pivoting arms stretching out across the cosmos. Our home galaxy’s disk is about 100, 000 light-years in diameter and just 1000 light-years thick, according to Las Cumbres Observatory (opens in new tab).

Detailed explanation-2: -Astronomers have determined that the Milky Way is a spiral galaxy by studying the rotational velocities of the stars that comprise it. They have also confirmed the existence of four spiral arms by studying the content of dust, the order of stars and their velocities.

Detailed explanation-3: -Explanation: Most scientists believe that the Milky Way galaxy is (1) spherical in shape (2) 4.6 million years old (3) composed of stars the revolve around Earth (4) one of billions of galaxies in the universe.

Detailed explanation-4: -Lord Rosse performed astronomical studies and discovered the spiral nature of some nebulae, today known to be spiral galaxies.