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Herschel: References & Edit History
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Assorted References
- European Space Agency
Article Contributors
Primary Contributors
-
Erik Gregersen
Erik Gregersen is a senior editor at Encyclopaedia Britannica, specializing in the physical sciences and technology. Before joining Britannica in 2007, he worked at the University of Chicago Press on the Astrophysical Journal. Prior to that, he worked at McMaster University on the ODIN radio astronomy satellite project.
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Article History
Type | Description | Contributor | Date |
---|---|---|---|
Modified link of Web site: NASA - Herschel Space Observatory. | Mar 18, 2019 | ||
Paragraph about Herschel's discoveries added. | Jan 23, 2014 | ||
Herschel's mission ended on April 29, 2013. | Apr 30, 2013 | ||
Add new Web site: NASA - Herschel Space Observatory. | Aug 24, 2011 | ||
Add new Web site: European Space Agency - Science and Technology - Herschel. | Aug 24, 2011 | ||
Updated for Herschel becoming fully operational. | Jun 22, 2010 | ||
Added information on the opening of the hatch. | Jun 15, 2009 | ||
New article added. | May 15, 2009 |
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