What's on this A-10's wing?

I found this awesome picture, but the planes are carrying something I don't recognize. It's that pod on port wing, the right side of the picture. I'm not referring to the litening pod on the starboard wing. Rather the one opposite it.

Any guesses?

a rocket pod?

7-shot pod left wing, 19-shot pod right wing?

yep, looks like the small rocket pod to me

Looks like a Rocket Pod on the left wing and a Lightning Pod on the right wing to me.

Ohhhhhhhhh

I thought there was a dome in the front

Of course it's a rocket pod XD

If you're interested in a better view;

The image came from http://www.af.mil/shared/media/photodb/photos/081107-F-7823A-171.JPG, but the link is dead.

You can still see the images at https://www.af.mil/shared/media/photodb/photos/081107-F-7823A-171.JPG

same plane, different angle:

Here's a big version

http://wallpapersontheweb.net/wallpapers/l/aircraft_warthog_airplane_war_desert_military-31747.jpg

What's the brownish stuff scattered on the wings and tail?Just dust/dirt?

It's also funny to see so many pics of warthogs with bumps on the nose, looks like a2a refueling isn't always as smooth as what we see on Youtube :P

Grease/fuel + desert dust.

thanks