Worth a read - Science mag

Always worth a read, if not a free newsletter sub is Science. This week we have this fascinating snippet: "Beats of Heat. The Sun's atmosphere rotates with a period of about 25 days near the
equator and 35 days near the poles, and the resulting twist of magnetic field lines causes the output of solar energy pulses on similar time scales. The extreme ultraviolet radiation from the Sun is the heat source for the upper atmospheres, or thermospheres, of planets, and Forbes et al. (p. 1366; see the Perspective by Muller-Wodarg) have spotted a 27-day periodic fluctuation in Mars' thermosphere, which they compared with simultaneous measurements at Earth. The beating of Earth's upper-atmosphere temperature changes is twice as strong as the signal for Mars; the difference arises from a combination of distance from the Sun and the effects of cooling by CO2. These joint observations constrain CO2 cooling rates in basic models of planetary atmospheres."

Now to me that signals some interesting thoughts. 27 Earth day Solar heat fluctuation. Hmmm. Very close to the 28 day lunar phase cycle, upon which many things have become reliant in timing terms, the human menstrual cycle being one. I wonder also how closely this solar beat may be aligned with earthy events such as storm activity, global warming and so on?