@sciencebase Is that the Moon's moon top right? You would think that the Apollo folk might have mentioned it being there.
@SteelFolk I looked at the original, zoomed in...can't see anything...odd.
@sciencebase It is indeed. I went to enlarge and crop it and can't see it either now.
@SteelFolk How very...
@sciencebase I think it must have been a tiny curled-up hair on my screen that's blown off now, but I'll call it an artefact cos it sounds better.
@SteelFolk When I got my first laptop, I had problems and asked a computer mate to have a look...he ran some checks, fixed the problem, and then pointed out a patch of very bright pixels, which he told me could be a sign of a computer virus. I wiped them away with my sleeve...it was spit...
Wrote it up for John Hoyland's Feedback page of newscientist to which I probably contributed 100 items over the years.
@sciencebase I disabled my laptop touch screen cos sneezing on it counted as a click (said he, still spluttering from hay fever). Naive folk will say "use a tissue"...no time for that.
@SteelFolk Definitely an artyfuct