The massive Chicxulub asteroid thought to have taken out most dinosaurs may have had company—a much smaller relative named Nadir, according to a new study.
may have had company—a much smaller relative named Nadir, according to a study published this week in. Sifting through seismic reflection data off the coast of West Africa, a team of scientists stumbled on what looks like anreports.
Based on the position and profile of the impression, the researchers hypothesize the underwater scar came from a 400-meter-wide asteroid that may have arrived around the same time as Chicxulub—possibly even hailing from the same parent rock . It’s unlikely that the comparatively smaller Nadir contributed to the dinosaurs’ demise, though its collision would have triggered a train of tsunami waves and notable climate impacts, the authors say.
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