Yes, but on a limited Holiday / Sunday Schedule
No
http://metrarail.com/Sched/cnw_nw/cnw_nw.shtml This site shows you metra trains to and from Chicago on the Union Pacific District Northwest line.
One can find train routes in Chicago online on websites, such as Transit Chicago, CBS Chicago and Metra Rail. The information about train routes is updated daily.
Subway trains, like other trains, run on rails.
The diesels run out of fuel. Electric trains run out of electricity.
No. There are no solar trains in the world. There are electric trains, some of which run on renewable energy, but there are no solar trains, that is, trains with solar panels that capture and use solar radiation on the run.
Golf - Metra - was created in 1903.
Cary - Metra - was created in 1952.
Berwyn - Metra - was created in 1890.
Cragin - Metra - ended in 2006.
McHenry - Metra - was created in 1910.
Wilmette - Metra - was created in 1871.