,In science fiction we often hear about portals: people, aliens, perhaps Sasquatch bouncing around in space. Now we hear more and more about multiple universes.
While I was researching portals, and how, theoretically/fictionally they could be closed, I stumbled upon a post by NASA.
Guess what? Portals are real. I was amazed. Here's their explanation and a link to 2 of their articles, one form 2012 that sounds like excited scientists finding a new toy, and from 2017 when things are much more scientifically serious. It all has to do with magnetic connections and possible solar wind. The portals, as I understand it, can be small, fast openings, or, vast long-lasting. I like the sound of the second one, I can get a lot of my attacking armies through there quickly. (This is how my creepy bokor travel.)
"We call them X-points or electron diffusion regions," explains plasma physicist Jack Scudder of the University of Iowa. "They're places where the magnetic field of Earth connects to the magnetic field of the Sun, creating an uninterrupted path leading from our own planet to the sun's atmosphere 93 million miles away."
Observations by NASA's THEMIS spacecraft and Europe's Cluster probes suggest that these magnetic portals open and close dozens of times each day. They're typically located a few tens of thousands of kilometers from Earth where the geomagnetic field meets the onrushing solar wind. Most portals are small and short-lived; others are yawning, vast, and sustained. Tons of energetic particles can flow through the openings, heating Earth's upper atmosphere, sparking geomagnetic storms, and igniting bright polar auroras.
The fascinating links: https://www.nasa.gov/mission_pages/sunearth/news/mag-portals.html
Let me know your thoughts. I think we're onto something here... Get your very own copy of The Mac, 1st in the Sir William & Mac Life Without Slippers sci fi humor series. The Mac is HERE: https://www.amazon.com/Mac-William-Life-Without-Slippers-ebook/dp/B07GJGFNJ3/