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1894 – Paul Drude introduces the symbol c for speed of light in vacuum. 1895 – Hendrik Lorentz corrects his 1892 model, proposing a contraction by the Lorentz factor (γ). 1895 – Albert Einstein probably makes his thought experiment about chasing a light beam, later relevant to his work on special relativity.
John Moffat (1932–) proposed much faster speeds of light in the young universe, developed antisymmetric theories of gravity Lauro Moscardini (1961–) modeled galaxy clustering in the early universe
The following is a list of astronomers, astrophysicists and other notable people who have made contributions to the field of astronomy.They may have won major prizes or awards, developed or invented widely used techniques or technologies within astronomy, or are directors of major observatories or heads of space-based telescope projects.
Both his biblical commentary, the Hexaemeron (1230 x 35), and his scientific On Light (1235 x 40), took their inspiration from Genesis 1:3, "God said, let there be light", and described the subsequent process of creation as a natural physical process arising from the generative power of an expanding (and contracting) sphere of light.
2008 – 16-year study of stellar orbits around Sagittarius A* provides strong evidence for a supermassive black hole at the centre of the Milky Way galaxy; 2009 – Planck begins observations of cosmic microwave background; 2012 – Higgs boson found by the Compact Muon Solenoid [12] and ATLAS [13] experiments at the Large Hadron Collider
Euclid initially captured an image of a well-observed galaxy named NGC 6505, which is located about 590 million light-years from Earth, in 2023. A light-year is the distance light travels in one ...
At first they briefly cooperated in their work, but later, from around 1815, a chill arose between them. For many years they kept details of their work away from each other. Some of Young's conclusions appeared in the famous article "Egypt" he wrote for the 1818 edition of the Encyclopædia Britannica. [5]
Scientists have discovered a mysterious pulsating light—and they don’t know what it could be. It pulses at a rate of about once every 21 minutes, and has been doing so since at least 1988.