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Swift: References & Edit History
Article Contributors
Primary Contributors
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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 |
|---|---|---|---|
| Article revised and updated. | Oct 29, 2019 | ||
| Modified link of Web site: NASA - Swift. | Mar 18, 2019 | ||
| Add new Web site: NASA - Swift. | Aug 19, 2011 | ||
| Number of gamma-ray bursts updated for 2011. | Feb 08, 2011 | ||
| Updated number of gamma-ray burst from "more than 450" to "more than 550." | Apr 05, 2010 | ||
| Added images of supernova exploding captured by Swift. | Apr 05, 2010 | ||
| Information about GRB 090423 added. | Apr 29, 2009 | ||
| New article added. | Apr 22, 2009 |
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