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The Week Ahead: 12/16

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Monday NASA's gravity recovery and interior laboratory mission known as -- comes to an end.

To lunar spacecraft named ebb and flow have been orbiting Earth's moon for about a year.

Scientists say the mission is help to learn about the -- structure and composition and unprecedented detail.

The proposal crashed into the -- on purpose in order to.

Wednesday workers in -- again -- 24 hour nationwide strike to protest austerity measures and what they call the abandonment of public services.

Friday it's the shortest day of the year is winter begins and that same day congress is supposed to adjourn for the holidays.

But leaders are warning members to make plans to stay as fiscal cliff talks continue.

Congress' holiday break will likely be pushed back or even nonexistent.

Until a deal is officially reached.

Also Friday the Mayan calendar ends after more than 5000 years the calendar began in 3114.

BC.

Many of interpreted the last day as a prophecy for doomsday or the end of the world.

Scholar -- at the idea saying today's simply the end of the old Mayan calendar and the beginning of a new one I guess we'll find out.

And that's a look at the week ahead -- Marion Lafferty Fox News.