Cassini Gets Kiss Goodbye, Careens Toward Its Death

Spacecraft will forever become one with the planet on Friday
By Newser Editors and Wire Services
Posted Sep 12, 2017 3:49 PM CDT
Fiery Death Looms for NASA's Cassini
This July 23, 2008 image made available by NASA shows the planet Saturn, as seen from the Cassini spacecraft. After a 20-year voyage, Cassini is poised to dive into Saturn on Friday, Sept. 15, 2016.   (NASA/JPL/Space Science Institute via AP)

After a 20-year voyage, NASA's Cassini spacecraft is poised to dive into Saturn this week to become forever one with the exquisite planet. There's no turning back: Friday it careens through the atmosphere and burns up like a meteor in the sky over Saturn. The only spacecraft ever to orbit Saturn, which it arrived at in 2004, Cassini spent the past five months exploring the uncharted territory between the gaseous planet and its dazzling rings. It's darted 22 times between that gap, sending back ever more wondrous photos. On Monday, Cassini flew past jumbo moon Titan one last time for a gravity assist—a final kiss goodbye, as NASA calls it, nudging the spacecraft into a deliberate, no-way-out path, reports the AP.

During its final plunge early Friday morning, Cassini will keep sampling Saturn's atmosphere and beaming back data, until the spacecraft loses control and its antenna no longer points toward Earth. Descending at a scorching 76,000mph, Cassini will melt and then vaporize. It should be all over in a minute. "The mission has been insanely, wildly, beautifully successful," says NASA program scientist Curt Niebur. "I find great comfort in the fact that Cassini will continue teaching us up to the very last second." Telescopes on Earth will watch for Cassini's burnout nearly a billion miles away. But any flashes will be hard to see given the time—close to high noon at Saturn—and Cassini's minuscule size against the solar system's second largest planet. The AP has much more on Cassini's history here. (Read more Cassini stories.)

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