Now that Disney has raised their prices on annual ...

Now that Disney has raised their prices on annual passes, we're looking for a cheap place to entertain the curious mind of our 10-year old, and i stumbled upon the free open house that JPL is offering this weekend!! But no, that's not the only reason for the visit.. it sounds very interesting, especially with the new discoveries on Mars, and we are hoping to add our names to the waiting list for that trip to Mars