/ Modified aug 6, 2019 1:15 p.m.

NOVA The Planets: Saturn

NASA's Cassini reveals the mysteries of Saturn's rings—and new hope for life on one of its moons.

Nearly a billion miles from the Sun lies perhaps the most captivating and beloved planet: Saturn. Over the past 40 years, a handful of space probes has given us glimpses of this gas giant, relaying tantalizing discoveries like a massive hexagonal jet-stream that caps its north pole. But it was NASA’s Cassini, which toured Saturn’s realm for 13 years, that delivered the most astounding new insights. Saturn’s icy rings—about 45,000 miles wide and only 30 feet thick—turn out to be younger than the dinosaurs, raising questions about their origins. Could they be the remnants of a moon ripped apart by Saturn’s gravity? NOVA takes you inside Cassini’s epic journey as it makes its most stunning discovery yet: geysers of ice and gas on the moon Enceladus show that it could have all the ingredients for life. But to protect it, Cassini’s team must make a bittersweet decision.

NOVA: The Planets, Wednesday at 9 p.m. on PBS 6.

By posting comments, you agree to our
AZPM encourages comments, but comments that contain profanity, unrelated information, threats, libel, defamatory statements, obscenities, pornography or that violate the law are not allowed. Comments that promote commercial products or services are not allowed. Comments in violation of this policy will be removed. Continued posting of comments that violate this policy will result in the commenter being banned from the site.

By submitting your comments, you hereby give AZPM the right to post your comments and potentially use them in any other form of media operated by this institution.
Arizona Public Media broadcast stations are licensed to the Arizona Board of Regents. Arizona Public Media and AZPM are registered trademarks of the Arizona Board of Regents.
The University of Arizona