Tag

Space and Astronomy

Why Is Our Galaxy Shaped like a Spiral?

May 28, 2020

A galaxy is a huge number of stars grouped together. Our galaxy contains about 1,00,000 million stars. It looks like a disc with a flat cen

May 7, 2020

Ultraviolet radiations are electromagnetic rays which are like light rays, but are not visible to the human eye. It is a part of the spectr