A museum in Washington D.C. that Jeff really wanted to visit was the Air and Space museum.  They have a large collection of airplanes and jets and different sections for the different ‘eras’ of flight.  It was very interesting.

In addition to the exhibits, we saw a 25-minute film called “Dark Matter” that talked about…dark matter.  I won’t even try to explain it here, but it was real good and was narrated by Neil DeGrasse Tyson who also narrates the current TV series “Cosmos”.

Here are some pictures: