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 ...
27 HELMI. 2004
Julkaisupäivä
1720
Katselukerrat
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 spacecraft, researchers found that the solar wind streams out of the Sun by 'surfing' waves in the Sun's atmosphere.
The solar wind is made up of electrons and ions (electrically charged atoms that have lost electrons).
Mediamodaali
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 ...
5 July
1054: On 5 July 1054, a powerful celestial explosion brightened the summer sky. It was the spectacular explosion of a supernova, the violent death of a star that may have ...
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