Space And Time 101

"What is Spacetime? Are space and time the same thing? Space was thought to be nothing, an empty void with no matter in it. In 1908, Hermann Minkowski postulated that time could be thought of as a 4th dimension along with the three dimensions of space. Einstein later showed that this spacetime is a kind of geometry that can bend, affecting the trajectory and passage of time for objects. How can space and time be part of the same canvas? Space is measured in meters, while time is measured in seconds. How are the two interchangeable?"

Click on the link below for a clear, but somewhat counter-intuitive, understanding of how space and time interact:

How Can SPACE and TIME be part of the SAME THING?

The Militarization Of Space

"David Ignatius is the longtime foreign affairs columnist at The Washington Post. He’s also the author of 11 spy thriller novels that draw on decades of experience reporting on espionage and spying. He joins Preet to discuss the escalating race between the US and China to control space, how artificial intelligence could influence the future of warfare, and his latest four-part novella published in the Washington Post."

Click on the link below for a podcast discussing space as a significant future location for international conflict:

The Geopolitics of Spying & Space

It's Bad Enough Polluting The Earth

Low-Earth Orbit has become a junkyard:

Space Junk: The Real Risk and What to Do About it