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Pierre Janssen
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Introduction References & Edit History Quick Facts & Related Topics
Images
Pierre Janssen, detail from an engraving
Quizzes
View of the Andromeda Galaxy (Messier 31, M31).
Astronomy and Space Quiz
Michael Faraday (L) English physicist and chemist (electromagnetism) and John Frederic Daniell (R) British chemist and meteorologist who invented the Daniell cell.
Faces of Science
Nicolaus Copernicus. Nicolas Copernicus (1473-1543) Polish astronomer. In 1543 he published, forward proof of a Heliocentric (sun centered) universe. Coloured stipple engraving published London 1802. De revolutionibus orbium coelestium libri vi.
All About Astronomy
Related Questions
Read Next
Galaxy clusters like Abell 2744 can act as a natural cosmic lens, magnifying light from more distant, background objects through gravity. NASA's James Webb Space Telescope may be able to detect light from the first stars in the universe if they are gravitationally lensed by such clusters. (astronomy, space exploration, galaxies)
How Fast Is the Universe Expanding?
Planet Earth and lunar moon from space
Where Did the Moon Come From?
solar eclipse, sun, moon, astronomy, space
How Do You Tell the Difference Between Total, Annular, Solar, and Lunar Eclipses?
Arrangement of the phases of the moon in total eclipse with Blood Moon
9 Celestial Omens
1 July 2002: The Solar and Heliospheric Observatory (SOHO) satellite reveals a massive solar eruption more than 30 times the Earth's diameter. The eruption formed when a loop of a magnetic field over the surface of the Sun trapped hot gas.
6 Questions About the Sun Answered
Discover
Red Army (Soviet) soldiers in the Russian Revolution.
Russian Revolution Timeline
Alcoholic beverages bottles at Host 2013, international exhibition of the hospitality industry on OCTOBER 18, 2013 in Milan.
Why Is Alcohol Measured by Proof?
Washington, D.C. locator map.
What State Is Washington, D.C. In?
Abstract vector hi speed internet technology background
History of Technology Timeline
Andrew Jackson delivering a speech while on his way to Washington, D.C., for his inauguration in 1829. From Harper's Weekly, 1881.
5 Remarkably Close U.S. Presidential Elections
Close-up of ostriches (Struthio camelus) necks and heads; location unknown.
6 of the World's Most Dangerous Birds
A mug shot taken by the regional Colombia control agency in Medellin
Pablo Escobar: 8 Interesting Facts About the King of Cocaine

Pierre Janssen: References & Edit History

Additional Reading

Françoise Launay, The Astronomer Jules Janssen: A Globetrotter of Celestial Phyiscs (2012; originally published in French, 2008).

Article Contributors

Primary Contributors

Other Encyclopedia Britannica Contributors

Article History

Type Description Contributor Date
First paragraph modernization. Mar 15, 2024
Anniversary information added. Feb 18, 2024
Anniversary information added. Dec 19, 2023
Article thoroughly revised. Jul 24, 2014
Bibliography added. Jul 23, 2014
Add new Web site: Fact Monster - People - Biography of Pierre Jules César Janssen. Mar 12, 2012
Article added to new online database. Jul 20, 1998
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