Exhibit 10.55
 SEPARATION, RELEASE AND CONSULTING AGREEMENT
 Agreement Effective Date Astrotech Company Executive Parties
 RECITALS
  Employment Agreement
 paragraphs 10-17




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AGREEMENT TERMS 
SEPARATION OF EMPLOYMENT AND RELEASE
  Termination of Employment Agreement and Severance Payments. Paragraph 5 paragraphs 4, 7 and 35 Severance Payments
 Minimum Payments paragraph 6(a)(1) - 6(a)(3)
 less amounts for federal income tax and other
employment-related withholdings
 less amounts for federal income tax and
other employment-related withholdings
  Schedule I
  2




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Other Severance Payments paragraphs 6(b)(1) - 6(b)(3)
 less amounts
for federal income tax and other employment-related withholdings Additional
Severance Payment Paragraph
12
 Paragraph 1(b)(ii)
 ARRA
   3




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Schedule II
  Resignation as Senior Vice President, Chief Financial Officer and Secretary of the Board of
Directors.
 Astrotech Releasees Astrotech Releasees
 Global Release of Claims
  4




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Executives Agreement to Honor Portions of the Employment Agreement paragraphs 10-17 paragraphs 10-17 paragraph 11 paragraphs 10-17 Paragraph 5 paragraphs 10-17 Paragraph
5 paragraphs 10-17 Paragraph 5 paragraphs 10-17 Paragraph 5 Forfeited Severance Payment  paragraph
1 1(e)(5) Restricted Period Paragraph 21
 No Admission of Liability/Confidentiality of Release. Paragraph 6 Paragraph 8
  5




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Non-Disparagement.
 Executives Non-Disparagement Disparaging Information Paragraph 7(a)
  6




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The Companys Non-Disparagement
 Cooperation. Paragraph 8
 Confidentiality of Company Information. Confidential Information
 Knowing and Voluntary Agreement.
  7




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Time to Consider Agreement.
 Revocation Period. Paragraph 1(b)(i) Paragraph 15 Paragraphs 1(b)(i) and 15
 AGREEMENT TERMS  CONSULTANT
 Description of Services Board CEO Consultant Services
 Nature of Relationship Between Parties
  8




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Consideration Paragraph 21 Paragraph 12 Consultant
Consideration Paragraph 13
 Payments Paragraph 15
 Limitations on the Companys Liability.
 Executives Standard of Care
 Confidentiality Paragraph 9 Paragraph 19 Paragraph 9
  9




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Return of Documents and Confidential Information.
 Consulting Term Consulting Term
 Survival Paragraphs 5, 6, 7, 8, 9, 19 and 20
 AGREEMENT TERMS  MISCELLANEOUS AND ENFORCEMENT
 Miscellaneous Provisions and Enforcement
 Notices
 If to Executive
  10




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If to the Company
 With a copy (which shall not constitute notice) to
 Governing Law; Jurisdiction PARAGRAPH 23(IX)
 Limitations on Assignment. Paragraph 23(iii)
 Waiver
 Severability
  11




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Headings
 Counterparts
 Entire Agreement Amendment, Binding Effect Paragraph 1
 Arbitration AAA Rules
  12




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Injunctive Relief . Paragraph 23(x) Paragraph 23(x) Paragraph 23(x)
 409A Compliance Paragraph 23(xi)
  13




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MY SIGNATURE BELOW MEANS THAT I HAVE READ THIS SEPARATION,
RELEASE AND CONSULTING AGREEMENT AND AGREE AND CONSENT TO ALL
OF ITS TERMS AND CONDITIONS.
 EXECUTIVE:
 Brian K. Harrington
 Date
 COMPANY:Astrotech CorporationBy:Name:Title:
 Date
  14




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SCHEDULE I
 Reimbursable Expenses
 Item
    
    Date Incurred
    
    AmountLegal Fees
    
    May 23, 2009 through June 4, 2009
    
    $
    1,800




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SCHEDULE II
 Vesting Under the Companys Stock Option and Incentive Award Plans
 
    
    2000 stock options granted on January 6, 2004 at $17.50 per share
 
    
    2000 stock options granted on August 16, 2004 at $24.10 per share
 
    
    2000 stock options granted on August 3, 2005 at $14.30 per share
 
    
    2000 stock options granted on August 9, 2006 at $11.50 per share
 
    
    15,000 Long Term Incentive Units granted on December 14, 2007, payable in cash at
$1.00 per unit
 
    
    50,000 stock options granted on July 18, 2008 at $0.45 per share
 
    
    150,000 shares of restricted stock granted on July 18, 2008