Is there anything humans could do to make the sun measurably more or less brighter?
I am just watching a documentary on SETI and alien life, and I got thinking on something.
What if it was possible to use the sun as a kind of Morse code telegraph machine. Perhaps we (or they) could use something like that to communicate over large distances.
Can you think of any way that it could be possible to make the sun brighter for a second, or perhaps dimmer?
Are there any people monitoring the brightness of stars with this in mind?
How could it be done with ease?