Space cadets! If skies clear in time, we'll get a chance to see the International Space Station on a pass over the Appalachians to Maine. Look for a very bright, star-like object rising above the southwestern horizon, to the right of Jupiter, at 5:42 p.m. Traveling at 17,500 mph, it will climb more than halfway up the northwestern sky by 5:45 p.m., when it will be 250 miles from observers in Baltimore. Then it will fly off toward the northeast, disappearing at 5:47 p.m.