Release Message:  Time travel may still be impossible, but the Chronoscope, sensing the nearly imponderable tracks of ancient photons, allows a glimpse into any event in Earth's distant past. From an original story by Isaac Asimov.

Description:  Time travel may still be impossible, but the Chronoscope, sensing the nearly imponderable tracks of ancient photons, allows a glimpse into any event in Earth's distant past. Historian Arnold Potterley is rebuffed when he petitions for use of the Chronoscope to study ancient Carthage. So he commissions the building of a private time-viewing machine, with unexpected results. In a Britain of the future, it will be possible to visit the past using a machine called the "Chronoscope". Only for some reason, an elderly historian is being denied the right to use the device.