2024 YR4: 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.
Article History
| Type | Description | Contributor | Date |
|---|---|---|---|
| Article revised and updated. | Mar 05, 2026 | ||
| Added material about possible lunar impact of 2024 YR4. | Aug 14, 2025 | ||
| Added diagram comparing the size of asteroid 2024 YR4 to various objects. | May 01, 2025 | ||
| New article added. | Apr 15, 2025 |
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