Why did the Illuminati keep finally discovering the missing planet?

You are right.
the cover-up in 1919 was still TOTAL.
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No more in 2008. See:

*** BREAKING *** Next total solar eclipse has been cancelled - August 1, 2008
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In
Solar Eclipses: Einstein hoax 1919 and the Irony of God in Illuminati End Times

[link to good-astronomy.blogspot.com]

Don't click, deleted by the CIA

MONUMENTAL!

I think it's because they keep checking their pooo

3 1 3 - The *** MOST IMPORTANT *** post in the short story of the Web - by Google
At the end, but STILL in first page -
Results 1 - 10 of about 135,000,000 for Day 1 God
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In
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No more. You will need now a exact quote
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Anyone remember February 15, 1997?
That was the day the centaur Chariklo was discovered, what was the general mood then? Did they think they'd found a new planet?
I'm new BTW! So hi!
In
[link to www.sciforums.com]

Answer

Find your answer once, instead of letting them keep finding it for you
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(At this point, any of the 6 result will give you the answer...)
In
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MATT 24:6 - the end times code in the Illuminati anti-Bible explained by End Times Prophet. But who echoed it?
[link to www.godlikeproductions.com]

ET Truth

Last Prophet replies to an idiot (or a CIA psy-op) propagating illuminati jokes packaged as a mix of "astronomy" and "space travel" (1):

Hey FOOLS, the illuminati are laughing at you.
THERE IS NO PLUTO
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Notes
(1) Pluto glowing Red Due To Solar Flares, Southwest Research Institute In Boulder Colorado Determines
Thread: Pluto glowing Red Due To Solar Flares, Southwest Research Institute In Boulder Colorado Determines