DMPQ: Define- Comets, Dark matter, Dark energy and Fundamental particle (Science)

Q.  Comets Ans:   Comets originate in outer solar system and are formed of cosmic snowballs of frozen gases, rock and dust that orbit the sun. When a comet’s orbit bring it close to the sun ,it heat up and spewn dust and gases into a giant glowing head larger than most planets.   Q.  Dark … Read more DMPQ: Define- Comets, Dark matter, Dark energy and Fundamental particle (Science)