Cornell Chronicle - "Arecibo telescope track 'potentially dangerous' asteroid within 1.5 million miles of Earth" (Blaine Friedlander), 4/30/2010, Box: 54, Folder: 387. Arecibo Ionospheric Observatory records, 53-7-3581. Division of Rare and Manuscript Collections. https://archives.library.cornell.edu/repositories/2/archival_objects/285038 Accessed April 07, 2026.