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In page European Space Agency:

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The beginning of the new millennium saw the ESA become, along with agencies like NASA and JAXA, one of the major participants in space research. Although ESA had relied on co-operation with NASA in previous decades, changed circumstances (such as tough legal restrictions on information sharing by the United States military) led to[citation needed] decisions to rely more on itself and on cooperation with Roscosmos.[1] However, after the Russian invasion of Ukraine in 2022, the cooperation between ESA and Roscosmos was mostly severed.[2][3][4][5]