9781422276013

Johannes Kepler Johannes Kepler was a German astron- omer. He proposed three laws related to the movement of planets in the early 1600s. These laws were known as Ke- pler’s laws of planetary motion. These laws explain the relationship between the sun and the speed with which the planets move.

Charles Messier Charles Messier was a French astron- omer. He dedicated his entire life to- wards the search of different types of comets. All the stars and comets that he discovered were published in the book called Messier Catalog of Nebulae and Star Clusters . He discovered more than twenty comets from 1759 to 1798.

SCIENCE FACTS

● ● The Hubble Space Telescope, the largest space telescope, is named after Edwin Hubble. ● ● Johannes Kepler wrote a book named Epitome of Copernican Astronomy , which contains all the theories and discoveries made by him.

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SPACE EXPLORATION