Filed by NorthStar Earth & Space Inc.

Pursuant to Rule 425

under the Securities Act of 1933, as amended

and deemed filed under Rule 14a-12

of the Securities Exchange Act of 1934, as amended

Subject Company: Viking Acquisition Corp I

SEC File No.: 001-42927

As previously disclosed, on April 16, 2026, Viking Acquisition Corp. I, an exempted company limited by shares incorporated under the Laws of the Cayman Islands (“Viking”), entered into a Business Combination Agreement (as amended by Amendment No. 1 to Business Combination Agreement, dated May 15, 2026, the “Business Combination Agreement”) with NorthStar Earth & Space Inc., a corporation existing under the Canadian Corporate Statute (“NorthStar”), and Viking NS Amalgamation Corp., a corporation existing under the Canadian Corporate Statute.

On July 6, 2026, NorthStar posted the following press release to its website:

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NorthStar to Advance Space Domain Awareness Deploying AI at the Edge 

The European Space Agency (ESA) Space Safety Program supports enhancements to detect faint objects in space more efficiently and reduce latency 

Montreal, Canada – July 6, 2026 – NorthStar Earth & Space Inc. (“NorthStar”), a leader in commercial  Space Domain Awareness (SDA) services, today announced a project supported by the European Space Agency (ESA), and the Canadian Space Agency (CSA), to develop and deploy AI-based space object detection capabilities directly onboard satellites. This initiative advances NorthStar’s efforts to move intelligence from the ground into orbit, and opening a new phase of autonomous awareness, responsiveness, and safety across all orbits. The contract is part of ESA Space Safety’s Competitiveness Segment and was made possible thanks to funding from the CSA and Canada’s unique status as the only non-European cooperating state in ESA.  

The project will focus on developing machine learning capabilities to detect faint space objects, improving the performance of NorthStar’s space-based sensors while minimizing downlink requirements and increasing observation throughput. This initiative reflects NorthStar’s commitment to advanced technologies that enhance the performance, efficiency, and value of its services. 

Satellite operations are becoming highly dynamic, requiring faster access to information to support both safety and security. The growth of in-orbit services, increased maneuverability, and activity across multiple orbital regimes are driving demand for more timely and actionable insights. By deploying AI models at the orbital edge, NorthStar aims to extract critical SSA information at the point of collection, reducing the time between observation and delivery. 

“This project represents an important progression of our space-based monitoring capabilities,” said Stewart Bain, Founder & CEO of NorthStar. “By processing observations directly onboard satellites, we add the ability to better detect, assess, and act in orbit. This will allow us to identify and track more objects, improve responsiveness, and deliver information to customers more quickly. These game-changing capabilities will help governments, satellite operators, and commercial space users better understand and manage activity in orbit.” 

Media Contacts

NorthStar

Prosek Partners

Pro-NorthStar@Prosek.com

Additional Information and Where to Find It

In connection with the proposed Business Combination, Viking has filed with the Securities and Exchange Commission (the “SEC”) a registration statement on Form F-4 (the “Registration Statement”) under the Securities Act of 1933, as amended (the “Securities Act”), which includes a prospectus with respect to Viking’s securities to be issued in connection with the proposed Business Combination and a proxy statement to be distributed to holders of Viking’s Class A ordinary shares in connection with Viking’s solicitation of proxies for the vote by Viking’s shareholders with respect to the proposed Business Combination and other matters to be described in the Registration Statement (the “Proxy Statement”). After the SEC declares the Registration Statement effective, Viking plans to file the definitive Proxy Statement with the SEC and to mail copies to Viking’s shareholders as of a record date to be established for voting on the proposed Business Combination and other matters to be described in the Registration Statement. This document does not contain all the information that should be considered concerning the proposed Business Combination and is not a substitute for the Registration Statement, Proxy Statement or for any other document that Viking may file with the SEC. Before making any investment or voting decision, investors and securityholders of Viking and the Company are urged to read the Registration Statement and the Proxy Statement, and any amendments or supplements thereto, as well as all other relevant materials filed or that will be filed with the SEC in connection with the proposed Business Combination as they become available because they will contain important information about the Company, Viking and the proposed Business Combination. Investors and securityholders will be able to obtain free copies of the Registration Statement, the Proxy Statement and all other relevant documents filed or that will be filed with the SEC by Viking through the website maintained by the SEC at www.sec.gov. In addition, the documents filed by Viking may be obtained free of charge from Viking’s website at www.vikingspac.com or by directing a request to Viking Acquisition Corp. I Attn: Corporate Secretary, 900 Third Avenue, 18th Floor, New York, NY 10022. The information contained on, or that may be accessed through, the websites referenced in this document is not incorporated by reference into, and is not a part of, this document.

Participants in the Solicitation

The Company, Viking and their respective directors, executive officers and other members of management and employees may, under the rules of the SEC, be deemed to be participants in the solicitations of proxies from Viking’s shareholders in connection with the proposed Business Combination. For more information about the names, affiliations and interests of Viking’s directors and executive officers, please refer to the final prospectus from Viking’s initial public offering, which was dated October 30, 2025 and filed with the SEC on October 31, 2025 (the “IPO Prospectus”) and the Registration Statement, Proxy Statement and other relevant materials filed or to be filed with the SEC in connection with the proposed Business Combination when they become available. Additional information regarding the participants in the proxy solicitation and a description of their direct and indirect interests, which may, in some cases, be different than those of Viking’s shareholders generally, will be included in the Registration Statement and the Proxy Statement, when they become available. Shareholders, potential investors and other interested persons should read the Registration Statement and the Proxy Statement carefully, when they become available, before making any voting or investment decisions. You may obtain free copies of these documents from the sources indicated above.

No Offer or Solicitation

This press release shall not constitute a “solicitation” as defined in Section 14 of the Exchange Act. This press release shall not constitute an offer to sell or exchange, the solicitation of an offer to buy or a recommendation to purchase, any securities, or a solicitation of any vote, consent or approval, nor shall there be any sale, issuance or transfer of securities in any jurisdiction in which such offer, solicitation or sale may be unlawful under the laws of such jurisdiction. No offering of securities in the proposed Business Combination shall be made except by means of a prospectus meeting the requirements of the Securities Act or an exemption therefrom.

Forward-Looking Statements

This press release includes forward-looking statements. Forward-looking statements generally are accompanied by words such as “believe,” “may,” “will,” “estimate,” “continue,” “anticipate,” “intend,” “expect,” “should,” “would,” “plan,” “predict,” “potential,” “seem,” “seek,” “future,” “outlook” and similar expressions that predict or indicate future events or trends or that are not statements of historical matters. These forward-looking statements include, but are not limited to, statements regarding estimates and forecasts of other financial and performance metrics and projections of market opportunity; financing and other business milestones; potential benefits of the proposed Business Combination and other related transactions; and expectations relating to the proposed Business Combination and other related transactions. These statements are based on various assumptions, whether or not identified in this press release, and on the current expectations of NorthStar’s and Viking’s management and are not predictions of actual performance. These forward-looking statements are provided for illustrative purposes only and are not intended to serve as and must not be relied on by an investor as a guarantee, an assurance, a prediction, or a definitive statement of fact or probability. Actual events and circumstances are difficult or impossible to predict and may differ from assumptions. Many actual events and circumstances are beyond the control of NorthStar and Viking. These forward-looking statements are subject to a number of risks and uncertainties, including but not limited to changes in domestic and foreign business, market, financial, political, and legal conditions; the inability of the parties to successfully or timely consummate the proposed Business Combination and other related transactions, including the risk that any regulatory approvals are not obtained, are delayed or are subject to unanticipated conditions (such as any SEC statements or enforcements or other actions relating to SPACs) that could adversely affect the combined company or the expected benefits of the proposed Business Combination and other related transactions; failure to realize the anticipated benefits of the proposed Business Combination and other related transactions; ability to successfully consummate the PIPE Financing, or obtain additional financing; ability to attract and retain qualified personnel; global economic and political conditions; the occurrence of any event, change or other circumstance that could give rise to the termination of the Business Combination Agreement; legal and regulatory changes; the outcome of any legal proceedings that may be instituted against Viking or NorthStar related to the proposed Business Combination; the effects of competition on NorthStar’s future business; the approval by Viking’s public shareholders of the Business Combination and related transactions, the amount of redemption requests made by Viking’s public shareholders. Additional risks related to NorthStar’s business include, but are not limited to: The development of advanced data analytics services is complex, and delays could adversely affect NorthStar’s business and prospects; NorthStar may be unable to adequately control the costs associated with its operations and the components necessary to develop and commercialize its data analytics technology; NorthStar may not accurately estimate future supply and demand for its analytics services, leading to inefficiencies and hindering its ability to generate revenue and profits; NorthStar’s expectations and targets regarding technical, pre-production, and production objectives depend on assumptions and analyses that may prove incorrect, affecting milestone achievement; if NorthStar’s existing customers do not continue to purchase its analytics services, its revenue and results of operations would be adversely impacted; NorthStar is an early-stage company with a history of financial losses and expects to incur significant expenses and continuing losses from operations; NorthStar’s business plan has yet to be tested, and it may not succeed in executing on its strategic plans, including commercialization; NorthStar relies heavily on its intellectual property portfolio and if it is unable to protect its intellectual property rights, its business and competitive position would be harmed; NorthStar may need to defend itself against intellectual property infringement claims, which may be time-consuming and could cause it to incur substantial costs or limit its ability to use certain technology; governmental trade controls, including export and import controls, sanctions, customs requirements and related regimes, could subject NorthStar to liability or loss of contracting privileges, limit its ability to transfer technology or compete in certain markets and affect its ability to hire qualified personnel; and changes in U.S., Canadian and foreign government policy, including the imposition of or increases in tariffs and changes to existing trade agreements, could have a material adverse effect on global economic conditions and NorthStar’s business, financial condition, results of operations and prospects. Additional risks related to Viking include those factors set forth in the section entitled “Risk Factors” and “Cautionary Note Regarding Forward-Looking Statements” in the IPO Prospectus and Registration Statement, and in those documents that Viking has filed, or will file, with the SEC.

If any of these risks materialize or Viking’s or NorthStar’s assumptions prove incorrect, actual results could differ materially from the results implied by these forward-looking statements. There may be additional risks that neither Viking nor NorthStar presently know or that Viking and NorthStar currently believe are immaterial that could also cause actual results to differ from those contained in the forward-looking statements. In addition, forward-looking statements reflect Viking’s and NorthStar’s expectations, plans, or forecasts of future events and views as of the date of this press release and are qualified in their entirety by reference to the cautionary statements herein. Viking and NorthStar anticipate that subsequent events and developments will cause Viking’s and NorthStar’s assessments to change. These forward-looking statements should not be relied upon as representing Viking’s and NorthStar’s assessments as of any date subsequent to the date of this press release. Accordingly, undue reliance should not be placed upon the forward-looking statements. Neither Viking, NorthStar nor any of their respective affiliates undertake any obligation to update these forward-looking statements, except as required by law.