Horizon: References & Edit History
Article Contributors
Primary Contributors
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The Editors of Encyclopaedia Britannica
Encyclopaedia Britannica's editors oversee subject areas in which they have extensive knowledge, whether from years of experience gained by working on that content or via study for an advanced degree. They write new content and verify and edit content received from contributors.
Other Encyclopedia Britannica Contributors
Article History
| Type | Description | Contributor | Date |
|---|---|---|---|
| Article title updated for style. | Nov 10, 2026 | ||
| Modified link of Web site: OpenStax - Astronomy 2e - The Sky Above. | Jan 24, 2025 | ||
| Add new Web site: University of Central Florida Pressbooks - Astronomy - The Sky Above. | Mar 15, 2024 | ||
| Add new Web site: OpenStax - Astronomy 2e - The Sky Above. | Nov 24, 2023 | ||
| Add new Web site: Frontiers - Frontiers in Astronomy and Space Sciences - Editorial: Horizons in Astronomy and Astrophysics. | Sep 26, 2023 | ||
| Add new Web site: How Stuff Works - Science - Horizon. | Feb 21, 2012 | ||
| Add new Web site: Fact Monster - Science - Horizon. | Feb 21, 2012 | ||
| Media added. | Jan 21, 2011 | ||
| Article added to new online database. | Jul 20, 1998 |
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