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Supertopics:
Cosmology and Astronomy
Asteroids
Subtopics and Documents:
An Asteroid Killed Off the Dinosaurs 66,000 Years Ago
consensus that an asteroid killed off the dinosaurs
web
Karin Zeitvogel
AFP
2010-03-05
Trump is as delusional (about the election) as Calvin
web
Ruben Bolling
2021-01-08
asteroid close call catches scientists by surprise
web
CBS News
2019-07-27
covering how an asteroid will effect election campaigns
web
Ruben Bolling
1996-01-01