UNITED STATES

                       SECURITIES AND EXCHANGE COMMISSION

                              WASHINGTON, DC 20549


                                    FORM 8-K

                                 CURRENT REPORT

     Pursuant to Section 13 or 15 (d) of the Securities Exchange Act of 1934

       Date of Report (Date of earliest event reported): November 8, 2006


                                ESSEX CORPORATION
             (Exact name of Registrant as specified in its charter)

                           Commission File No. 0-10772

         Virginia                                                  54-0846569
(State or other jurisdiction of                         (IRS Employer ID No.)
incorporation or organization)

         6708 Alexander Bell Drive
         Columbia, Maryland                                        21046-2306
(Address of principal executive office)                            (Zip Code)

Registrant's telephone number, including area code:            (301) 939-7000

Check  the  appropriate  box  below  if the  Form  8-K  filing  is  intended  to
simultaneously  satisfy the filing obligation of the registrant under any of the
following provisions (see General Instruction A.2. below):

[   ] Written communications pursuant to Rule 425 under the Securities Act
      (17 CFR 230.425)

[ X ] Soliciting material pursuant to Rule 14a-12 under the Exchange Act
      (17 CFR 240.14a-12)

[   ] Pre-commencement communications pursuant to Rule 14d-2(b) under the
      Exchange Act (17 CFR 240.14d-2(b))

[   ] Pre-commencement communications pursuant to Rule 13e-4(c) under the
      Exchange Act (17 CFR 240.13e-4(c))





                    INFORMATION TO BE INCLUDED IN THE REPORT

SECTION 1 - REGISTRANT'S BUSINESS AND OPERATIONS

ITEM 1.01.  ENTRY INTO A MATERIAL DEFINITIVE AGREEMENT.

AGREEMENT AND PLAN OF MERGER

On  November  8, 2006,  Essex  Corporation,  a Virginia  corporation  ("ESSEX"),
entered into a definitive  Agreement and Plan of Merger (the "MERGER AGREEMENT")
with  Northrop  Grumman  Space &  Mission  Systems  Corp.,  an Ohio  corporation
("NORTHROP GRUMMAN"), and Eagle Transaction Corporation,  a Virginia corporation
and  wholly  owned  subsidiary  of  Northrop  Grumman  ("MERGERCO").  The Merger
Agreement  provides that, upon the terms and subject to the conditions set forth
in  the  Merger  Agreement,   MergerCo  will  be  merged  with  and  into  Essex
Corporation,  with Essex  continuing as the surviving  corporation  and a wholly
owned subsidiary of Northrop Grumman (the "Merger").

Pursuant to the terms of the Merger  Agreement,  upon the  effectiveness  of the
Merger,  each  issued  and  outstanding  share of  Essex  common  stock  will be
converted into the right to receive $24.00 in cash,  without interest,  and each
outstanding  Essex stock option,  whether or not vested or exercisable,  will be
converted into the right to receive the excess,  if any, of the $24.00 per share
merger consideration over the per share exercise price of the stock option.

In  addition,  Essex has  agreed,  among  other  things  and  subject to certain
exceptions as described in the Merger Agreement,  (i) to conduct its business in
the ordinary  course  consistent  with past practice  during the interim  period
between  the  execution  of the Merger  Agreement  and the  consummation  of the
Merger, (ii) not to engage in certain  transactions during such period, (iii) to
cause a  shareholder  meeting to be held  promptly to  consider  approval of the
Merger Agreement,  and (iv) subject to certain limited  exceptions to permit the
board of  directors  to comply with their  fiduciary  duties,  not to enter into
discussions or negotiations concerning,  or to provide information in connection
with, alternative business combination transactions.

Consummation  of the  Merger is  subject  to a number of  conditions,  including
approval by Essex's  shareholders,  absence of any law or order  prohibiting the
consummation  of  the  Merger,  expiration  or  termination  of  the  applicable
Hart-Scott Rodino Antitrust Improvements Act of 1976 waiting period, and certain
other customary  conditions.  Under applicable Virginia law, approval by Essex's
shareholders will require the affirmative vote of holders of at least 2/3 of the
shares of Essex common stock entitled to vote.

Pursuant to the terms of the Merger  Agreement,  Northrop Grumman and Essex each
have certain  termination  rights. In the case of Northrop Grumman, it will have
the right to terminate the Merger  Agreement if, among other reasons,  the Essex
board of directors withdraws,  modifies,  qualifies or amends its recommendation
of the Merger in a manner adverse to Northrop Grumman, and in the case of Essex,
it will have the  right to  terminate  the  Merger  Agreement  if,  among  other
reasons,  it  determines  to  enter  into an  unsolicited  alternative  business
combination  transaction  that the board finds to be more  favorable  to Essex's
shareholders than the Merger,  after following  certain



procedures  set forth in the Merger  Agreement.  Upon  termination of the Merger
Agreement under specified circumstances,  Essex will be required to pay Northrop
Grumman a termination fee of $22.5 million.  Additionally,  if the Merger cannot
be closed or is  delayed  for  longer  than six  months  because  of  regulatory
impediments  (subject to the right of Northrop Grumman to extend the termination
date for an additional 90 days),  Northrop Grumman has agreed to reimburse Essex
for  out-of-pocket  expenses  (including  reasonable  legal  fees and  expenses)
incurred in connection with the Merger of up to $1 million.

In connection with entering into the Merger Agreement,  three  stockholders (Len
Moodispaw,  John Hannon,  and Terry Turpin),  who collectively own 11 percent of
Essex's  outstanding  common stock and who are also members of the Essex's board
of directors,  have signed voting agreements with Northrop Grumman,  agreeing to
vote  their  shares in favor of the merger and in  opposition  to any  competing
acquisition  proposals.  In  addition,  the voting  agreements  provide that the
stockholders  may not  transfer  their  shares (or any options or other  similar
rights with  respect to Essex  stock) to any other party  during the term of the
agreements.  The term of the voting  agreements  extend until the earlier of the
closing of the Merger or 6 months after the termination of the Merger  Agreement
for any reason.

The  foregoing  description  of the Merger  Agreement  and the  Merger  does not
purport to be complete  and is  qualified  in its  entirety by  reference to the
Merger Agreement,  which is filed as EXHIBIT 2.1 hereto and incorporated  herein
by reference.

CAUTIONARY STATEMENTS

The Merger  Agreement has been included to provide  investors  with  information
regarding  its  terms.  Except  for its status as a  contractual  document  that
establishes  and governs the legal  relations  among the  parties  thereto  with
respect  to the  transactions  described  above,  the  Merger  Agreement  is not
intended to be a source of factual,  business or operational  information  about
the parties.

The Merger Agreement contains representations and warranties made by the parties
to  each  other  regarding  certain  matters.  The  statements  embodied  in the
representations  and warranties  are qualified by  information  in  confidential
disclosure  schedules that the parties have exchanged in connection with signing
the Merger Agreement.  Please note that certain  representations  and warranties
were  made as of a  specific  date,  or may have been  used for the  purpose  of
allocating risk between the parties rather than establishing matters as facts.

IMPORTANT ADDITIONAL INFORMATION ABOUT THE MERGER

ESSEX WILL FILE WITH THE SECURITIES AND EXCHANGE COMMISSION (THE "COMMISSION") A
PROXY STATEMENT AND OTHER DOCUMENTS REGARDING THE PROPOSED BUSINESS  COMBINATION
TRANSACTION  REFERRED TO IN THE  FOREGOING  INFORMATION.  INVESTORS AND SECURITY
HOLDERS ARE URGED TO READ THE PROXY STATEMENT WHEN IT BECOMES AVAILABLE, BECAUSE
IT WILL CONTAIN IMPORTANT INFORMATION. A DEFINITIVE PROXY STATEMENT WILL BE SENT
TO  SECURITY  HOLDERS  OF  ESSEX  SEEKING  THEIR  APPROVAL  OF THE  TRANSACTION.
INVESTORS AND SECURITY  HOLDERS MAY OBTAIN A FREE COPY OF THE  DEFINITIVE  PROXY
STATEMENT (WHEN IT IS AVAILABLE) AND OTHER DOCUMENTS FILED BY ESSEX WITH



THE SEC AT THE  COMMISSION'S  WEB  SITE AT  WWW.SEC.GOV.  THE  DEFINITIVE  PROXY
STATEMENT  AND OTHER  DOCUMENTS  ALSO MAY BE  OBTAINED  FOR FREE BY  DIRECTING A
REQUEST TO:

CORPORATE  SECRETARY,  ESSEX CORPORATION,  6708 ALEXANDER BELL DRIVE,  COLUMBIA,
MARYLAND 21046, OR BY PHONE AT 301-939-7000.

ESSEX AND ITS DIRECTORS AND EXECUTIVE  OFFICERS MAY BE DEEMED TO BE PARTICIPANTS
IN THE SOLICITATION OF PROXIES FROM ESSEX STOCKHOLDERS.  COLLECTIVELY, AS OF MAY
3, 2006,  AS REPORTED  IN THE PROXY  STATEMENT  FOR THE 2006  ANNUAL  MEETING OF
STOCKHOLDERS,  THE BENEFICIAL  OWNERSHIP OF THE DIRECTORS AND EXECUTIVE OFFICERS
OF ESSEX WAS APPROXIMATELY 14.7%. STOCKHOLDERS MAY OBTAIN ADDITIONAL INFORMATION
REGARDING THE INTERESTS OF SUCH PARTICIPANTS BY READING THE PROXY STATEMENT WHEN
IT BECOMES AVAILABLE.

FORWARD-LOOKING STATEMENTS

THIS CURRENT REPORT ON FORM 8-K MAY CONTAIN "FORWARD-LOOKING  STATEMENTS" WITHIN
THE MEANING OF THE UNITED STATES  PRIVATE  SECURITIES  LITIGATION  REFORM ACT OF
1995.  SUCH  STATEMENTS  ARE  BASED  ON  CURRENT  EXPECTATIONS,   FORECASTS  AND
ASSUMPTIONS AND ARE SUBJECT TO RISKS AND  UNCERTAINTIES,  WHICH MAY CAUSE ACTUAL
OUTCOMES,  PERFORMANCE OR  ACHIEVEMENTS TO DIFFER  MATERIALLY  FROM  ANTICIPATED
OUTCOMES,  PERFORMANCE OR ACHIEVEMENTS.  RISKS AND  UNCERTAINTIES  INCLUDE:  THE
SATISFACTION OF THE CONDITIONS TO CLOSING,  INCLUDING RECEIPT OF STOCKHOLDER AND
REGULATORY  APPROVAL;  GENERAL  INDUSTRY AND MARKET  CONDITIONS;  THE ABILITY OF
EITHER  COMPANY TO ACHIEVE  FUTURE  BUSINESS  OBJECTIVES;  AND THE RISK THAT THE
PERCEIVED  ADVANTAGES OF THE TRANSACTION,  IF CONSUMMATED,  MAY NOT BE ACHIEVED.
ALL FORWARD-LOOKING STATEMENTS ARE ALSO EXPRESSLY QUALIFIED IN THEIR ENTIRETY BY
THE CAUTIONARY STATEMENTS DETAILED FROM TIME TO TIME IN ESSEX'S FILINGS WITH THE
COMMISSION,  INCLUDING ITS QUARTERLY  REPORTS ON FORM 10-Q AND ITS ANNUAL REPORT
ON FORM  10-K.  THE  INFORMATION  SET FORTH  HEREIN  SPEAKS  ONLY AS OF THE DATE
HEREOF, AND ESSEX CORPORATION DISCLAIMS ANY INTENTION OR OBLIGATION TO UPDATE OR
REVISE ANY  FORWARD-LOOKING  STATEMENTS  AS A RESULT OF  DEVELOPMENTS  OCCURRING
AFTER THE DATE HEREOF.

SECTION 9 - FINANCIAL STATEMENTS AND EXHIBITS

ITEM 9.01.  FINANCIAL STATEMENTS AND EXHIBITS.

(D) EXHIBITS

    Exhibit
    NUMBER DESCRIPTION

    2.1     Agreement and Plan of Merger Agreement dated as of November 8, 2006,
            by and between Northrop Grumman Space & Mission Systems Corp., Eagle
            Transaction Corporation, and Essex Corporation.*

           -------------------



           *      The registrant has omitted  certain  schedules and exhibits in
                  accordance   with  Item  601(b)(2)  of  Regulation   S-K.  The
                  registrant will furnish the omitted  schedules and exhibits to
                  the Securities and Exchange Commission upon request.




                                   SIGNATURES

Pursuant  to the  requirements  of the  Securities  Exchange  Act of  1934,  the
registrant  has duly  caused  this  report  to be  signed  on its  behalf by the
undersigned hereunto duly authorized.

                                            ESSEX CORPORATION

                           /s/ Lisa G. Jacobson
                           ----------------------------------------------------
DATE:  November 9, 2006    Lisa G. Jacobson
                           Executive Vice President and Chief Financial Officer





                                  EXHIBIT INDEX
Exhibit
NUMBER          DESCRIPTION

2.1             Agreement and Plan of Merger dated as of November  8, 2006,  by
                and between  Northrop  Grumman  Space & Mission Systems Corp.,
                Eagle Transaction Corporation, and Essex Corporation.*

-------------------
*          The  registrant  has  omitted  certain   schedules  and  exhibits  in
           accordance with Item 601(b)(2) of Regulation S-K. The registrant will
           furnish the omitted  schedules  and  exhibits to the  Securities  and
           Exchange Commission upon request.