9 July
1999: On 9 July 1999, solar scientists announced that they may have solved a long-standing enigma about the Sun.Working on data gathered from the ESA's SOHO and NASA's Spartan 201 ...
27 FEV. 2004
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1962: On 10 July 1962, Telstar 1, the world's first geosynchronous communications satellite, was launched.
Its purpose was to relay television and telephone signals between the United States and Europe. When Telstar was put into service for the first satellite television broadcast, it made possible the first live television signals sent across the Atlantic. Viewers in France and the United Kingdom saw President Kennedy conduct a press conference, and audiences in the United States watched French singer Yves Montand and the changing of the guard at Buckingham Palace in London.
1910: On 10 July 1910, Johann Gottfried Galle died.
Galle was a German astronomer who, on 23 September 1846, was the first to observe the planet Neptune. The planet's existence had been predicted in the calculations of Leverrier. Leverrier had written to Galle asking him to search for the new planet at a predicted location.
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8 July
1998: On 8 July 1998, astronomers discovered a nearby star system that could be just like our own Solar System. An international team later announced the discovery of a ring ...
7 July
1816: On 7 July 1816, Rudolf Wolf was born.Wolf was a Swiss astronomer and astronomical historian. Wolf's main contribution was the discovery of the eleven-year sunspot cycle. He was also ...
6 July
1687: On 6 July 1687, Newton's Philosophiae Naturalis Principia Mathematica (Mathematical Principles of Natural Philosophy) was published for the frist time. This work is often held to represent the culmination ...
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