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Support for this show comes from Norwegian Cruise Line. A cruise with Norwegian is a vacation you'll never forget,

with an onboard experience that makes it easy for the whole family

to settle into their own version of vacation.

Because on a cruise with Norwegian, choice comes naturally for the whole family,

and destinations feel just as effortless.

Wander beautiful cities and take in stunning natural scenery.

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Visit NCL.com, call your travel advisor, or 1-888 NCL Cruise. Norwegian Cruise Line, ships registry,

the Bahamas and USA.

In 1977, for only a few months, the planets would line up in a configuration that only

happens every 176 years, an alignment that would allow a spacecraft to pass by the outer planets,

Jupiter, Saturn, Uranus, and Neptune, and then to leave our solar system.

NASA was planning to launch two identical spacecraft in that short window to send us images and data from so far away.

They were called the Voyagers.

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