The article is devoted to the analyses of the issues of legal regulation of issues of foreign citizens participation in megascience projects. The large-scale nature of megascience objects that distinguishes them from other research infrastructures is expressed primarily in the scale of the objects of research, in terms of the complexity of their creation, the complexity of operation, as well as the exchange of workforce in the process of research exercising. Considering the issue of personnel exchange in the framework of large-scale research, it is necessary to focus not only on conducting the research in the framework of megascience, but also on legal regulation of foreign researchers attraction, or the problem of the entry and residence of foreign scientific researchers. The EU has a procedure for admitting third-country nationals recruited for the purpose of conducting research activities, independent of their legal relationship with the host research organization and not requiring a work permit in addition to authorization. This procedure is based on cooperation between research organizations and the immigration authorities of the EU Member States. The existence of specific procedure for the entry and residence of foreign scientific researchers helps to remove barriers in the migration of researchers, expand the scientific exchange. In this regard the EU legal experience in the scope of researchers migration regulation should be used as a model for improving the Russian Federation legal regulation in the same scope.

We are currently experiencing a new revolution, which is related to the Internet, nanotechnology, biotechnology and robotics. Artificial intelligence is based on intelligent algorithms or learning algorithms similar to human intelligence, technologies make it possible for computer systems to acquire independence, self-adaptive reconfiguration. The greater the autonomy of AI, robots, and androids, the less they depend on manufacturers, owners, and users.The fact that the new generation of robots will coexist with humans should be taken into account in legislation, it should adapt and regulate issues of great legal significance, namely: who takes responsibility for the actions or inaction of intelligent robots? What is their legal status? Should they have a special regime of rights and obligations? How to resolve ethical conflicts related to their behavior?The analysis of legislation and doctrine in Latin America has revealed some trends in the use of AI.1. The use of AI in various spheres of public life causes legal problems in terms of guaranteeing human rights, as evidenced by the analysis of the constitutions of Brazil, Mexico and Argentina. For example, article 8 of the American Convention on Human Rights states: "Everyone has the right to have his case heard, with appropriate guarantees and within a reasonable period of time, before a competent, independent and impartial court convened in advance by law in support of any criminal charge brought against him or to determine his rights or obligations of a civil, labour, financial or any other nature."2. The similarity of AI and human intelligence raises the question of legal personality of AI, granting AI rights. The civil and commercial code of Argentina departs from the category of "human person" and establishes the term "legal persons": "all persons to whom the legal system grants the ability to acquire rights are legal persons for the purpose of fulfilling their purpose and obligations".The line between things and people is becoming more blurred, technology and a more sensitive view of other living beings lead to doubt whether man is the sole subject of law.

In the context of the reform of migration legislation in Russia, proceeding from the Concept of State Migration Policy of the Russian Federation for 2019-2025 and the Strategy of Scientific and Technological Development of the Russian Federation in 2016, the paper examines the experience of the supranational legal system of the European Union to create a special procedure for the admission of scientists from countries outside the EU, for the purpose of conducting scientific research in EU megascience facilities (experimental reactors, particle colliders, the synchrotrons, etc.).The subject of the study is the provisions of Directive (EU) 2016/801 of the European Parliament and of the Council of 11 May 2016. "On the Conditions of Entry and Residence of Third-Country Nationals for the Purposes of Research, Studies, Training, Voluntary Service, Pupil Exchange Schemes or Educational Projects and Au Paring" in the part relating to scientists ("Researchers" in the terminology of the Directive).Following the general characteristics (history of adoption, action in time, space and in the circle of persons, conceptual apparatus), the general and special conditions for admission of foreign scientists to the EU, the legal features of "admission agreements" with research organizations of the EU member States and migration documents (residence permits or visas for long-term stay), on the basis of which foreign scientists enter and engage in research activities in the EU, are considered.The final section specifies alternative legal mechanisms for the admission of foreign scientists to the EU — civil law and employment contracts (contracts), including within the framework of the application of EU legislation on the labor migration of highly skilled workers from third countries and the European blue card established by this legislation.

The article is devoted to the analyzes of the issues of legal regulation of mutual recognition of professional qualifications in the context of increasing cross-border scientific cooperation, the emergence of new forms of cooperation and exchange of workforce, in particular in the framework of megascience class projects i.e. great science. The EU was the first integrational organization among the other organizations existing in Europe and the world that recognized the need to develop special legal mechanisms to ensure cross-border mobility of qualified specialists, and also adopted acts to conduct research within megascience (both at the EU and individual states level). The participation of scientists from various countries in megascience projects involves the integration of states not only to create structural units (cross-border associations) for the implementation of large-scale research, but also the integration of the economic and educational space, free movement of scientists.

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