"Non-Marine Mass Extinctions Occur with Periodicity of 27.5" Topic

….Million Years: Study

""It seems that large-body impacts and the pulses of internal Earth activity that create flood-basalt volcanism may be marching to the same 27-million-year drumbeat as the extinctions, perhaps paced by our orbit in the Milky Way Galaxy," said lead author Professor Michael Rampino, a researcher in the Department of Biology at New York University.

About 66 million years ago, 70% of all species on land and in the seas, including the non-avian dinosaurs, suddenly went extinct, in the disastrous aftermath of the collision of a large asteroid or comet with the Earth.

Subsequently, paleontologists discovered that such mass extinctions of marine life, in which up to 90% of species disappeared, were not random events, but seemed to come in a 26.4-27.3 -million-year cycle…"

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Amicalement
Armand

I'm not a math major, but given the periodicity indicated in the article, and working forward from…

66 million years ago, [when] 70% of all species on land and in the seas, including the non-avian dinosaurs, suddenly went extinct

doesn't that mean that this "Third Rock from the Sun" is about 12 million years OVERDUE for another mass extinction???

66 – 27 = 39, 39 – 27 = 12?? Maybe Elon Musk is on to something in wanting to leave for Mars as soon as possible?

(smile)

Amicalement
Armand