UPDATE:  Solved by Andy at 12:04 CDT

Can you believe it’s already Saturday again?  It’s been hectic around here, and I’m just happy to be here with another riddle for you.

Speaking of which, today’s riddle is ready for your delectation.  A bit different, today’s riddle can be viewed as science fiction, or as science fact.  Ready?

I've always liked this image

There’s been a lot of speculation given to this over the years.

As an event, this may have already happened.

As a science fiction plot device, you won’t get very far, very fast (so to speak), if it hasn’t happened somewhere along your story line.

NASA - one of the archive images... Apollo 11, and that's Buzz Aldrin

Generally considered to be benign, there are very reputable scientists who argue strongly against further experiments or attempts to facilitate this.

We’ve had many discussions on the blog about whether or not this is possible.

This riddle answer has a very strong presence in science fiction…

H.G. Wells "War of the Worlds" original cover - I still think those brains with their blank eyes are creepy

… in fact, we really wouldn’t have much in the genre without is.

Done and done.  There’s a nice little riddle to distract you from your regular Saturday round.  Oh!  Before I forget; if you want to solve the riddle, but already have several “wins” on this riddle cycle and so want to leave the riddle open for someone else to solve, you are welcome to email your guess to me.  If you solve it, I’ll let everybody know, and the riddle will remain open.

Another rerun, but this image tickles me (and it's all about ME, right?)