Jeremy Hansen: References & Edit History

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. 

Other Encyclopedia Britannica Contributors

Article History

Type Description Contributor Date
Noted the conclusion of the Artemis II mission and revised the Top Questions section. Apr 10, 2026
Updated with details of the mission; added media. Apr 09, 2026
Article revised and updated. Apr 02, 2026
Anniversary information added. Jan 23, 2026
New article added. Dec 12, 2025
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