orbit

Quirks and Quarks: EarthByte on Canadian National Radio with a story on Earth, Mars and ocean mixing

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Mars has more influence on Earth than non-astrologers might have thought. Mars is, on average, about 225 million kilometres from Earth, which would suggest that it has little impact on our planet. Which is true, but as they say, a little goes a long way. In our recent paper in Nature Communications, we studied the history of deep … Read more…

Nature Communications: Deep-sea hiatus record reveals orbital pacing by 2.4 Myr eccentricity grand cycles

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Astronomical forcing of Earth’s climate is embedded in the rhythms of stratigraphic records, most famously as short-period (10^4–10^5 year) Milankovitch cycles. Astronomical grand cycles with periods of millions of years also modulate climate variability but have been detected in relatively few proxy records. Here, we apply spectral analysis to a dataset of Cenozoic deep-sea hiatuses … Read more…