Squinting At Saturn Through 17th Century Technology

What can antique telescopes reveal about finding exoplanets? Originally published: Sep 19 2013 - 11:00am, Inside Science News Service By: Amanda Alvarez, ISNS Contributor (ISNS) -- A team of French researchers has shed light on an important moment of astronomical history by testing the old lenses used by astronomer Jean-Dominique Cassini when he observed a minuscule gap between two of Saturn's rings in 1675. Questions have lingered over whether it was possible to see this gap, which was later na...