The Universe | SEE Notes

The universe

The Universe | SEE Notes Universe: The huge space which contains everything that exists is called the Universe. The earth, the sun, the moon, planet, stars, atmosphere, etc. Whatever we see are in the universe. The breadth of the universe is about 105 light-years. Solar system: The family of the sun including all planets, satellites, … Read more

History of Earth | SEE Astronomy Notes


History of Earth | SEE Astronomy Notes Hypothesis about the origin of the earth: a) Planetesimal Hypothesis. b) Nebular Hypothesis. c) Tidal Hypothesis, etc. Planetesimal Hypothesis: This hypothesis was purposed by George Buffon in 1749 A.D. So it is called Buffon Hypothesis. According to him the earth along with other planets and satellites were formed … Read more