The Cosmic Microwave Background is 13.7 billion years old, yet is currently located at a distance of 46.5 billion light-years. It was emitted when the Universe was around 380,000 years old, the cosmological redshift of this Cosmic Microwave Background is approximately z = 1100, meaning the Universe has expanded 1100 times in size since what we can detect, was emitted. We see these figures all the time.

But what about the Gravity Wave Background emitted at the very instant of the Big Bang, or the Neutrino Background one second later? If we can ever detect the very first gravitational wave of the Big Bang, how much further is the radius of our Detectable Universe pushed outward?

This is what I'm visualizing:
A liquid ocean pressed against the inner side of Europa's ice crust, during high tide. Then the tide shifts and the water rushes away, leaving a gigantic hollow shell high above the ocean's surface, like a vast dome stretching towards the horizon in all directions, in total darkness.

Meanwhile, the tidal bulge has rushed halfway across the hemisphere, the water is now pressing against the ice crust there.

If the Jovian system's tidal forces can stretch and knead Io's mantle like silly putty, its' rocky surface rising and falling as much as 100 meters (about 300 feet) each tidal cycle... I can't even imagine how violently the water may slosh under Europa's ice crust.

One final note: considering that Europa is tidally locked with Jupiter, and it is Ganymede and Callisto that can pull in other directions, how long are the tidal cycles there? The principle is like on Earth, but there are extra gears in the mechanism, so to speak, different high and low tides may vary widely between each other.

The voice and the diction and the rhythm, Sir Alec elevates further what is already a stunning masterwork.

Wherever there is matter in an ever-thinning universe, there might be an entire cosmologically-sized era dominated by an entirely different chemistry to what we have now.

If the answer is YES, a related follow-up question: if each visible color of the spectrum were to measure a centimeter in width, how far would I have to move the sensor from the red to detect the change from infrared to microwave, then to radio?

In the knowledge that Sir William Herschel discovered infrared by repeating Newton's experiment, but with a thermometer to measure the temperature of each component of the spectrum, and after placing the thermometer a bit to the side of the red light, in darkness, noticed quite by accident that the device would still register heat, therefore an invisible yet very real component of light was there, warming the thermometer.

Now I'm just being the curious layman here, but a Google/YouTube search proved fruitless.

It's one of those pet peeves that rub me the wrong way, and they all seem to do it, whether it's anywhere around The Ringer network, or the Earwolf network, or the Blank Check podcast to name a few, they always say "Ray" instead of "Ralph".

The man's real full name is Ralph Nathaniel Twisleton-Wykeham-Fiennes, quite a fancy mouthful, but not even a hint of "Ray" or "Raymond" in there. Did everyone in the podcasting world decide to pronounce his name wrong on purpose?