For the other Astronuts out there

That looks like a AI generated image.

 

The "186,000 miles a second" is in a vacuum. Light travels more slowing in other mediums, like water, and not at all in things like lead. When it passes a high gravity area, like a black hole, it gets pulled a bit, and more so the closer it gets to the singularity. It gets completely pulled into the singularity at the event horizon and that's where the "black" in "black hole" comes in.

If you consider that it take about 8 minutes for light to exit the Sun and arrive at Earth you'll get a feel for how far away the sun is.

Seeing in the Dark . Astronomy Topics . Light as a Cosmic Time Machine | PBS.

 

Fisheye lens used to get the most image out of a single shot.

 

Space is a vacuum so if light gets a gravity boost it should retain that acceleration and maintain it toward the observer. Also since light particles can exceed the speed of light how would stretching or crunching the wavelength affect the visual observation? Would bending the path reflect like a mirror or deflect from the observer. Depending on the observer position.

Its been a slow day - heading for the Sauna to cleanse some brain cells and prepare for tomorrow's irrational thought thoughts.

 

I don't think I said "it gets a gravity boost."

 

Why would it "maintain it toward the observer"? Most of the observable universe is moving away from us. And everything else as well.

"light particles can exceed the speed of light"?

The rotational direction of a galaxy has nothing to do with it's apparent direction of travel with regard to the universe at large.

 

To my way of thinking: Light travels in one direction albeit in every direction from its source. If light can be bent passing by a black hole it would have to have mass. The gravity bending the light would/should(?) increase light speed : same speed shorter distance from moving from a straight line to a curve around the black hole altering the direction. If I pass another car on the inside of a curve I'm traveling a shorter radius. The speeds are the same but I took a shorter route. We're both continuing on the same road and I'd be slightly ahead. Both cars would be observed at a slightly different distance in regards to the observer.
The expansion of the Universe is based on Hubble's estimate which is based on Cepheid variable stars. Again I'm having issues with the "variable" part. Its been established there is confusion from observation that the difference between Cepheid's vary more than they should.
Galaxies rotate around their central mass which is revolving on an axis which I'm assuming imparts a centrifugal force affecting the stars. They've determined the Milky way is moving through space in a specific direction and I understand we may be part of the Globular Local Groups.But if every distant Galaxy is moving away from every other Galaxy until we can accurately measure if they are moving on a curved path or full steam ahead away from us and we're sitting still, I'll remain scope sceptical.

If any of this makes any kind of sense I'll be amazed. And definitely open to a syllabus.

 

Photons have mass. So gravity can affect them. "Light sails" are based on the concept that light striking something imparts energy to that object.

 

You might want to find "How the Universe Works" on cable or your premium channel provider(s). Phil Plait's Youtubes can be very instructive.

 

Just noticed that Prime Video has "How the Universe Works" available. The certified geniuses on that show make it easy to understand. You can tell they love their job(s).

 

Most of my confusion comes from watching that series. It’s hard to ask questions and get a reply from the television.
Basically I see the Universe in a sense of : each Galaxy as a Star from my perspective. The Galaxies taking the place of stars in our galaxy, Our Galaxy taking the place of our Sun. I guess a microscopic view of what we can observe?

 

Question related to tv show How the Universe Works

 

I won't argue that.

 

Nobody is.

 

And I won't argue with Mike Rowe.

 

You mean you won't argue with the people that wrote the text Mike is reading?

 

Project BLUE BOOK - Unidentified Flying Objects