Where Did the Dinosaur-Killing Impactor Come From? (Published 2021)
By Becky Ferreira
Scientists believe they have discovered where asteroid which wiped out dinosaurs came from
By Tim Baker
Why some scientists think a comet, not an asteroid, caused the dinosaurs to go extinct
By Nicole Karlis
Astronomers: A comet fragment, not an asteroid, killed off the dinosaurs
By Jennifer Ouellette