OTD…Oct. 15 and Cassini

#OTD in 1999…Columbia launched with the first woman commander and the Chandra X-ray Observatory

Barreling through space near the inner edge of Saturn’s wispy D ring, NASA’s Cassini spacecraft shielded from itself bits of ice and dust Sunday as the probe made its most dangerous plunge close to the planet, collecting spectacular edge-on views of Saturn’s rings with an on-board camera.

On the eve of the Cassini spacecraft’s deepest pass through the polar plumes of Enceladus, Spaceflight Now’s Stephen Clark spoke with Jonathan Lunine, a member of the mission’s science team from Cornell University, about what he hopes to learn from the encounter.