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    <schemaVersion>X0704</schemaVersion>

    <submissionType>D/A</submissionType>

    <testOrLive>LIVE</testOrLive>

    <primaryIssuer>
        <cik>0001390450</cik>
        <entityName>Aurora Algae, Inc.</entityName>
        <issuerAddress>
            <street1>1301 HARBOR BAY PKWY</street1>
            <city>ALAMEDA</city>
            <stateOrCountry>CA</stateOrCountry>
            <stateOrCountryDescription>CALIFORNIA</stateOrCountryDescription>
            <zipCode>94502</zipCode>
        </issuerAddress>
        <issuerPhoneNumber>510-748-4999</issuerPhoneNumber>
        <jurisdictionOfInc>DELAWARE</jurisdictionOfInc>
        <edgarPreviousNameList>
            <previousName>AURORA BIOFUELS INC</previousName>
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        <entityType>Corporation</entityType>
        <yearOfInc>
            <withinFiveYears>true</withinFiveYears>
            <value>2006</value>
        </yearOfInc>
    </primaryIssuer>

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            <relatedPersonName>
                <firstName>Matthew</firstName>
                <lastName>Caspari</lastName>
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                <street1>1301 Harbor Bay Pkwy</street1>
                <city>Alameda</city>
                <stateOrCountry>CA</stateOrCountry>
                <stateOrCountryDescription>CALIFORNIA</stateOrCountryDescription>
                <zipCode>94502</zipCode>
            </relatedPersonAddress>
            <relatedPersonRelationshipList>
                <relationship>Executive Officer</relationship>
                <relationship>Director</relationship>
                <relationship>Promoter</relationship>
            </relatedPersonRelationshipList>
            <relationshipClarification></relationshipClarification>
        </relatedPersonInfo>
        <relatedPersonInfo>
            <relatedPersonName>
                <firstName>Scott</firstName>
                <middleName>C</middleName>
                <lastName>McDonald</lastName>
            </relatedPersonName>
            <relatedPersonAddress>
                <street1>1301 Harbor Bay Pkwy</street1>
                <city>Alameda</city>
                <stateOrCountry>CA</stateOrCountry>
                <stateOrCountryDescription>CALIFORNIA</stateOrCountryDescription>
                <zipCode>94502</zipCode>
            </relatedPersonAddress>
            <relatedPersonRelationshipList>
                <relationship>Executive Officer</relationship>
            </relatedPersonRelationshipList>
            <relationshipClarification></relationshipClarification>
        </relatedPersonInfo>
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                <firstName>Guido</firstName>
                <lastName>Radaelli</lastName>
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                <street1>1301 Harbor Bay Pkwy</street1>
                <city>Alameda</city>
                <stateOrCountry>CA</stateOrCountry>
                <stateOrCountryDescription>CALIFORNIA</stateOrCountryDescription>
                <zipCode>94502</zipCode>
            </relatedPersonAddress>
            <relatedPersonRelationshipList>
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        </relatedPersonInfo>
        <relatedPersonInfo>
            <relatedPersonName>
                <firstName>Bertrand</firstName>
                <middleName>R</middleName>
                <lastName>Vick</lastName>
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                <street1>1301 Harbor Bay Pkwy</street1>
                <city>Alameda</city>
                <stateOrCountry>CA</stateOrCountry>
                <stateOrCountryDescription>CALIFORNIA</stateOrCountryDescription>
                <zipCode>94502</zipCode>
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        <relatedPersonInfo>
            <relatedPersonName>
                <firstName>Giacomo</firstName>
                <lastName>Marini</lastName>
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                <street1>535 Middlefield Rd.</street1>
                <street2>Suite 100</street2>
                <city>Menlo Park</city>
                <stateOrCountry>CA</stateOrCountry>
                <stateOrCountryDescription>CALIFORNIA</stateOrCountryDescription>
                <zipCode>94025</zipCode>
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            <relatedPersonRelationshipList>
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        <relatedPersonInfo>
            <relatedPersonName>
                <firstName>Brian</firstName>
                <lastName>Hinman</lastName>
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            <relatedPersonAddress>
                <street1>525 University Ave</street1>
                <street2>Suite 1300</street2>
                <city>Palo Alto</city>
                <stateOrCountry>CA</stateOrCountry>
                <stateOrCountryDescription>CALIFORNIA</stateOrCountryDescription>
                <zipCode>94301</zipCode>
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            <relatedPersonRelationshipList>
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                <relationship>Director</relationship>
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            <relationshipClarification></relationshipClarification>
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        <relatedPersonInfo>
            <relatedPersonName>
                <firstName>James</firstName>
                <lastName>Long</lastName>
            </relatedPersonName>
            <relatedPersonAddress>
                <street1>350 Marine Pkwy</street1>
                <street2>Suite 200</street2>
                <city>Redwood Shores</city>
                <stateOrCountry>CA</stateOrCountry>
                <stateOrCountryDescription>CALIFORNIA</stateOrCountryDescription>
                <zipCode>94065</zipCode>
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            <relatedPersonRelationshipList>
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        <relatedPersonInfo>
            <relatedPersonName>
                <firstName>Mostafa</firstName>
                <lastName>Ronaghi</lastName>
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                <street1>1301 Harbor Bay Pkwy</street1>
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                <zipCode>94502</zipCode>
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        <relatedPersonInfo>
            <relatedPersonName>
                <firstName>Greg</firstName>
                <lastName>Bafalis</lastName>
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                <city>Alameda</city>
                <stateOrCountry>CA</stateOrCountry>
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                <zipCode>94502</zipCode>
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            <relationshipClarification></relationshipClarification>
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        <relatedPersonInfo>
            <relatedPersonName>
                <firstName>Bandel</firstName>
                <lastName>Carano</lastName>
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                <street1>525 University Avenue</street1>
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                <city>Palo Alto</city>
                <stateOrCountry>CA</stateOrCountry>
                <stateOrCountryDescription>CALIFORNIA</stateOrCountryDescription>
                <zipCode>94301</zipCode>
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            <relatedPersonRelationshipList>
                <relationship>Director</relationship>
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        </relatedPersonInfo>
    </relatedPersonsList>

    <offeringData>
        <industryGroup>
            <industryGroupType>Other Energy</industryGroupType>
        </industryGroup>
        <issuerSize>
            <revenueRange>Decline to Disclose</revenueRange>
        </issuerSize>
        <federalExemptionsExclusions>
            <item>06</item>
        </federalExemptionsExclusions>
        <typeOfFiling>
            <newOrAmendment>
                <isAmendment>true</isAmendment>
                <previousAccessionNumber>0001390450-10-000003</previousAccessionNumber>
            </newOrAmendment>
            <dateOfFirstSale>
                <value>2008-06-06</value>
            </dateOfFirstSale>
        </typeOfFiling>
        <durationOfOffering>
            <moreThanOneYear>false</moreThanOneYear>
        </durationOfOffering>
        <typesOfSecuritiesOffered>
            <isEquityType>true</isEquityType>
        </typesOfSecuritiesOffered>
        <businessCombinationTransaction>
            <isBusinessCombinationTransaction>false</isBusinessCombinationTransaction>
            <clarificationOfResponse></clarificationOfResponse>
        </businessCombinationTransaction>
        <minimumInvestmentAccepted>0</minimumInvestmentAccepted>
        <salesCompensationList></salesCompensationList>
        <offeringSalesAmounts>
            <totalOfferingAmount>45266435</totalOfferingAmount>
            <totalAmountSold>45266435</totalAmountSold>
            <totalRemaining>0</totalRemaining>
            <clarificationOfResponse></clarificationOfResponse>
        </offeringSalesAmounts>
        <investors>
            <hasNonAccreditedInvestors>false</hasNonAccreditedInvestors>
            <totalNumberAlreadyInvested>28</totalNumberAlreadyInvested>
        </investors>
        <salesCommissionsFindersFees>
            <salesCommissions>
                <dollarAmount>0</dollarAmount>
            </salesCommissions>
            <findersFees>
                <dollarAmount>0</dollarAmount>
            </findersFees>
            <clarificationOfResponse></clarificationOfResponse>
        </salesCommissionsFindersFees>
        <useOfProceeds>
            <grossProceedsUsed>
                <dollarAmount>0</dollarAmount>
            </grossProceedsUsed>
            <clarificationOfResponse></clarificationOfResponse>
        </useOfProceeds>
        <signatureBlock>
            <authorizedRepresentative>false</authorizedRepresentative>
            <signature>
                <issuerName>Aurora Algae, Inc.</issuerName>
                <signatureName>/s/ Scott C. McDonald</signatureName>
                <nameOfSigner>Scott C. McDonald</nameOfSigner>
                <signatureTitle>Chief Financial Officer</signatureTitle>
                <signatureDate>2010-10-07</signatureDate>
            </signature>
        </signatureBlock>
    </offeringData>
</edgarSubmission>
