I got my Orbit3D simulation model working yesterday, and used it to plot the orbit of huge, newly-discovered Comet C/2019 Y4 (Atlas):
Many comets leave dust clouds along their orbits as material breaks off them, particularly while they near perihelion. These appear as periodic meteor showers on the surface of the Earth (e.g. Taurids, Leonids). Some people think that meteor showers could be the source of viral epidemics.
So while everyone is trying to blame each other for the Covid-19 pandemic. there is a possibility that nobody is to blame for it, because it came from outer space.
One piece of supportive evidence is that the Covid-19 pandemic seems to be largely restricted to the northern hemisphere (see map 1 April 2020 above). And this is where a dust cloud preceding Comet Atlas as it descends through the Solar System would be expected to land.
A second piece of supportive evidence might be the very rapid spread of the epidemic. This is what should be expected if the virus was landing simultaneously all over the northern hemisphere.
It’s currently believed that the pandemic began in Wuhan, China, in December 2019. What if it was first noticed there because a great many epidemics seem to start there, and the Chinese are always watching out for them?
In addition, many people believe that the virus was in circulation for months before December 2019, because they’d been coming down with strange flu-like symptoms. I have myself been suffering from shortage of breath since 17 January 2020, and several commenters have reported suffering from similar or worse symptoms.
The new coronavirus is believed to be extremely highly infectious. But perhaps it isn’t. Perhaps it appeared nearly everywhere in the northern hemisphere as an airborne virus falling slowly to Earth, and it’s this that gives it the illusion of high transmissivity. Aboard the Diamond Princess, it may have been only those passengers and crew who were on the open upper decks who inhaled the descending cloud of virus as they swam and played and sunbathed on just one particular day: passengers in bars and restaurants and shops and cabins below inhaled next to none. The Diamond Princess was quarantined on 4 February 2020, and assuming a two-week period before symptoms appeared, the date of the viral rain would have been in mid-January.
One test of this hypothesis would be to ask Diamond Princess passengers and crew a simple question: Did you spend much time on the open upper decks of the ship? If the results show that those who spent a long time on deck had more cases of Covid-19 than those who spent all their time below deck, it would suggest that the virus came from outside the ship, in the air around it.
If Comet Atlas has a very large companion stream of viral dust, the maximum density of the cloud would be reached at perihelion on 31 May. Covid-19 cases would tend to reach their maximum numbers around this time, with the Earth passing through the cloud for months. And currently the global pandemic indeed looks set to peak somewhere around this time.
If outbreaks of Covid-19 aren’t happening exactly simultaneously in China and Italy, it could be because the virus is not distributed uniformly in the Atlas dust cloud, so that one geographic region (China, Iran, Italy) may have been getting much denser viral clouds than others.
One explanation for the pandemic to have jumped from China to Italy is that Italy has lots of Chinese visitors. But isn’t the same true of almost everywhere else? And if the new coronavirus is solely spread by people, wouldn’t you expect to see Covid-19 diffusing slowly from one region to adjacent regions, rather than jumping long distances (like from China to Italy)?
Another explanation of the lower incidence of Covid-19 in the southern hemisphere may be that the past few months have been summer in the southern hemisphere, and it’s believed that viruses are neutralised by heat. If so, it will be interesting to see whether the northern hemisphere will experience the same thing during its upcoming summer months. If it doesn’t, it’ll be a bit more evidence for an extra-terrestrial origin for the current pandemic.