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SATURN DAILY
Cassini makes first dive through Saturn's rings
by Brooks Hays
Washington (UPI) Apr 26, 2017


Cassini is diving for rings -- or, at least, through rings.

On Wednesday, the space probe began its first dive through a 1,500-mile-wide gap separating Saturn and its rings.

During Cassini's "grand finale" phase, the probe will execute 22 dives. Along the way, the craft will record scientific data and collect samples from Saturn's rings and upper atmosphere. The observation will help scientists better understand how the gas giant and its rings formed and evolved.

Cassini is currently out of contact with its handlers at NASA. The probe is expected to reemerge and reconnect at approximately 3:00 a.m. EDT on Thursday. The Deep Space Network antenna at Goldstone, California, will await the probe's signal.

The probe will execute dive number two early next week. On September 15, at the end of the grand finale phase -- the grand finale's grand finale -- Cassini will make one final dive into Saturn's atmosphere.

The Cassini mission has twice been extended, but the probe is now low on fuel. Its suicide-like end will ensure NASA won't lose control of the craft and prevent a collision with one of Saturn's many moons. Even NASA wanted to prolong Cassini's scientific life, it couldn't -- it's too late.

"With this flyby we're committed to the grand finale," said Earl Maize, Cassini project manager at JPL. "The spacecraft is now on a ballistic path, so that even if we were to forgo future small course adjustments using thrusters, we would still enter Saturn's atmosphere on Sept. 15 no matter what."

SATURN DAILY
Cassini completes final Titan flyby
Pasadena CA (JPL) Apr 25, 2017
NASA's Cassini spacecraft has had its last close brush with Saturn's hazy moon Titan and is now beginning its final set of 22 orbits around the ringed planet. The spacecraft made its 127th and final close approach to Titan on April 21 at 11:08 p.m. PDT (2:08 a.m. EDT [06:08 UTC] on April 22), passing at an altitude of about 608 miles (979 kilometers) above the moon's surface. Cassini ... read more

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Explore The Ring World of Saturn and her moons
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