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isaac newton
An English Physicist, formulated the Laws of gravity and mechanics, which he applied to our planetary sysems in the universe. -
Edmond Halley
an english astronomer, used Newtons laws to predict that a comet last seen in 1682 would reappear 76 years later- and it did, in 1758. This effectively showed that objects in space are governed by the laws of mechanics -
William Herschel
a German-born British astronomer, propsed that some nebulae are groups or systems of stars, and that these stars, these star sysems are very distant and enormus -
gustav kirchhoff
a German physicist, investigated the sloar spectrum -
albert einstein
proposed the special theory of relativity, concerned with the propagation of elctric and magnetic phenomena in space and time -
Einstein
einstein found dealing of gravitity, space and time -
wilhelm de sitter
published series of papers describing astronmical consequences -
Harlow Shapley
prposed the mikly way galaxy -
Arthur Eddington
british astronomer led an expedition to observe a solor eclipse -
Edwin Hubble
american astronomer, found that some-so-called nebulae contain stars called cepheid variables -
Georges Lemaitre
formulated the modern Big Bang Theory -
edwin hubber
using the doppler effect -
Robert Wilson and Arno Penzias
observe background microwave radiation in space -
Stephen Hawking
suggest that after big bang mini black holes werte formed with enormous masses
