A Hole in Mars

Oh G_d, here come the “center of Mars” crazies. I’ve heard it’s a docking ground for Martian spaceships.

Try as I might, I really can’t stop seeing this is a positive (convex) image. It looks just like a flat marshmallow with a hole in the top.

Looks like the business end of a Death Star to me!

Maybe its just a doodlebug. A REALLY big doodlebug!

Yeah, that’s apparently supposed to be a crater surrounding the hole. I can generally manipulate optical illusions in my mind, but this refuses to be anything but convex for me.

When I looked the first time it was convex, now that I looked again (because of additional poss to the thread) I see it concave, and the shadow/sun inside the hole (reminds me of the sun spot inside the Pantheon in Rome, btw) looks correct (which it didn’t when I saw it as convex).

But now I’m completely unable to switch it to convex.. it’s concave from now on, apparently.

-Tor

Attention

Permission to flyby buzz the tower? That’s a negative, the pattern is full! SOB!
http://www.bing.com/images/search?q=Pictures+Jets+Breaking+Sound+Barrier&qpvt=Pictures+Jets+Breaking+Sound+Barrier&FORM=IGRE

http://www.youtube.com/watch?feature=endscreen&v=-d9A2oq1N38&NR=1

of course, Maverick is a bit busier these days… space… the final frontier

Me neither.
It’s probably the Martian version of the Hollow Face Illusion.
Congratulations, you’re not a Martian Schizophrenic!

It is plainly the largest known subwoofer ever.

From

“you always see the lightning before you hear the thunder”

[Pedantic] That is not always true, it’s just that if you do usually you only get to hear and see it at the same time once. [/Pedantic]

It’s Spaceport Pavonis Mons owned by Virgin Galactic.

Interesting. I immediately saw it as concave and can barely make myself flip it and see it as convex.

I agree the almost straight overhead perspective and shadows seem to make it a bit off for viewing it as convex.

. . . . dear Liza dear Liza.
Perhaps it is a sarlacc - http://en.wikipedia.org/wiki/Sarlacc