Celebrate a “Day of Saturn” with NASA!

After almost 20 years in space, NASA’s Cassini spacecraft begins the final chapter of its remarkable story of exploration: its Grand Finale. Learn more about the mission, the science behind it, its history and view Cassini’s end of mission timeline.

On the final orbit, Cassini will plunge into Saturn’s atmosphere, sending back new and unique science to the very end. After losing contact with Earth, the spacecraft will burn up like a meteor, becoming part of the planet itself.

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Cassini Facebook Page
Cassini Twitter Page

Frequently Asked Questions

What day does the mission end?
After almost 20 years in space, the Cassini mission will end on September 15, 2017 at 5:07 a.m. PDT (8:07 a.m. EDT).

Why Does Cassini Matter?
NASA’s Cassini spacecraft and ESA’s Huygens probe expanded our understanding of the kinds of worlds where life might exist and eight more reasons the mission changed the course of planetary exploration.

Why End The Mission?
By 2017, Cassini will have spent 13 years in orbit around Saturn, following a seven-year journey from Earth. The spacecraft is running low on the rocket fuel used for adjusting its course. If left unchecked, this situation would eventually prevent mission operators from controlling the course of the spacecraft.

Click here for some more FAQs from NASA.

Cassini: The Grand Finale

Wednesday, August 30th, 2017 at 1:00 p.m. (MDT)
Join the STAR_Net team and Colin Mitchell, a Space Science Institute researcher on the Cassini mission, to learn more about Cassini’s Grand Finale and ways to integrate this event into your programming.

Watch Webinar Recording

Partnership Opportunities

Reach out to NASA Subject Matter Experts to collaborate on your programs!
Invite them to serve as program speakers for adult programs or help you facilitate hands-on activities and talk about science and exploration with youth.  These Subject Matter Experts are STEM-focused professionals from NASA-funded centers and institutions, as well as researchers and NASA volunteers within each region that can collaborate on programs.
Find Potential Collaborators

Promotional Materials

Images for Your Use

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Exhibit Panel Posters

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Programming Resources

Hands-on Activities

Cassini: The Grand Finale

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Smartphone & Tablet App

NASA’s Spacecraft 3D is an augmented reality (AR) app that lets you learn about and interact with a variety of spacecraft (including Cassini) that are used to explore our solar system, study Earth, and observe the universe.

Download The App!

Interactive Websites

NASA’s Eyes on Cassini
In this interactive visualization, you can ride along with the Cassini spacecraft at any time during the entire mission, a period of 20 years!

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Deep Space Network Now
A real-time visualization of data coming down from spacecraft exploring our solar system (including Cassini).

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Printable Materials

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2016 Infographic
2015 Infographic #1
2015 Infographic #2