NASA found something on Mars

NASA will tell us what was found tomorrow, Thursday, at a news conference which can be watched on Youtube. I wonder what was found? A fossil perhaps?

I predict a fleet of WWII torpedo bombers.

I predict it will be one of the following:
--A new, previously undiscovered element, one which might have huge benefits if able to be transported intact to Earth, or:
--A collection of underground tunnels, evidence of earlier life forms there.

It's probably neither, but it will be most interesting to learn about their latest discovery. Thanks for the heads-up, @Isamorph!

A Starbucks called marsbucks?