Space Cadets! See stars Saturday night at Towson University. At 8 p.m. in Smith Hall, the school's Department of Physics, Astronomy and Geosciences celebrates the opening of its new planetarium and telescope facility. Enjoy planetarium shows and, weather permitting, a look through TU's new telescope. Hear a talk by NASA astrophysicist John Mather, winner of the 2006 Nobel Prize in Physics, "From the Big Bang to Life and the End of the Universe." That covers just about everything.