Based on new data today in Science, it seems increasingly likely that an asteroid or comet impact 66 million years ago reignited massive volcanic eruptions in India, half a world away from the impact site. But it leaves unclear to what degree the two contributed to the mass extinction of dinosaurs.

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Based on new data today in Science, it seems increasingly likely that an asteroid or comet impact 66 million years ago reignited massive volcanic eruptions in India, half a world away from the impact site. But it leaves unclear to what degree the two contributed to the mass extinction of dinosaurs.