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BellaOnline Editor Renaissance Human
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On this day in 2021 – December 25th – the James Webb Space Telescope was launched on an Ariane 5 rocket from Kourou, French Guiana.
As the largest optical telescope in space, its high resolution and sensitivity allow it to view objects too old, distant, or faint for the Hubble Space Telescope. This enables investigations across many fields of astronomy and cosmology, such as observation of the first stars, the formation of the first galaxies, and detailed atmospheric characterization of potentially habitable exoplanets..
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BellaOnline Editor Renaissance Human
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. On this day in 1780 – December 26th – Mary Somerville was born in Jedburgh, Scotland.Somerville was one of the leading lights of 19th century science. She was an able mathematician and she published books on developments in astronomy, physics and geography. Somerville was honored by several learned societies, even though, as a woman, she would not have been allowed to attend their meetings..
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BellaOnline Editor Renaissance Human
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. On this day in 1571 – December 27th – Johannes Kepler was born near Stuttgart in Germany.Using the data of Tycho Brahe, Kepler formulated the three laws planetary motion which were the foundation for our modern view of the Solar System. They could describe planetary orbits simply, but required the Sun - not the Earth - to be at the center of the Solar System..
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BellaOnline Editor Renaissance Human
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On this day in 1789 – December 28th – Scottish astronomer Thomas Henderson was born in Dundee, Scotland.
He was based at the Royal Observatory, Cape of Good Hope, South Africa during the early 1830s. After his return to his native Scotland, he became Astronomer Royal for Scotland in 1834, a post he held until his death in 1844..
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BellaOnline Editor Renaissance Human
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. On this day in 1882 – December 28th – English astrophysicist Arthur Eddington was born in Kendal, Westmorland, England.Eddington was one of the most eminent scientists of his day, and was made famous by testing Einstein's theory of general relativity during a total solar eclipse..
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BellaOnline Editor Renaissance Human
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On this day in 2005 – December 28th – GIOVE-A, the first Galileo satnav system satellite, was launched.
Galileo is Europe's global navigation satellite system, developed under a partnership between the European Space Agency (ESA) and the European Commission (EC)..
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On this day in 1888 – December 29th – pioneering Welsh astrophotographer Isaac Roberts took the first detailed picture of another galaxy, the Great Nebula in Andromeda.
Roberts went on to systematically photograph the brightest nebulae and star clusters visible from England, and received international recognition for his work..
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BellaOnline Editor Renaissance Human
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On this day in 1928 – December 30th – Belgian astronomer Henri Debehogne was born in Maillen, Belgium.
Debehogne worked at the Royal Observatory of Belgium in Uccle where he specialized in the astrometry of comets and minor planets. The Minor Planet Center of the International Astronomical Union (IAU) credited him with over 700 discoveries of minor planets...
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BellaOnline Editor Renaissance Human
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On this day in 1744 – December 31st – English astronomer James Bradley announced the discovery of Earth's nutation motion. Bradley was a distinguished academic at Oxford and later became the third Astronomer Royal at Greenwich.
Nutation is a phenomenon which causes the orientation of the axis of rotation of a spinning astronomical body to vary over time. Earth's nutation is caused by the gravitational forces of the Sun and Moon..
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