We could barely detect any sign of life beyond our local neighborhood of stars. Worrying about other galaxies is getting waaaaaay ahead of ourselves.

If there was a civilization just like ours 1000 light years away, we would be incapable of detecting it. A typical terrestrial radio broadcast would be undetectable beyond about 1 light year. Our galaxy is 87,400 light years across.

45.7 billion light-years is the current comoving distance to the edge of the visible universe - this distance includes expansion. It is the distance now, not the distance when the light we are seeing was emitted. The observable universe was smaller when the light we are seeing now was emitted, because that light has taken time to reach us.

The light being emitted now from objects at the edge of the observable universe will not reach us for a very, very long time - much longer than 45 billion years, because the space in between us and that light will expand even more while it is traveling. Light traveling from 45 billion light years away will have to travel further than 45 billion light years to reach us.

A solar flare and a geomagnetic storm are different things, you cannot directly compare the strength of a flare on the sun and the resulting geomagnetic storm caused by a CME associated with the flare hitting earth.

Importantly, the CME launched by the 2003 flare went away from Earth and didn't hit us.

The Farmers Almanac gave every month's moon a name, with the blue moon being the second full moon in a month, if there is one. Some of these are traditional names, some of them they probably just made up.

You see them a lot lately because they get clicks.