COST (European Cooperation in Science and Technology) COST (European Cooperation in Science and Technology) supports transnational cooperation among researchers, engineers and scholars across Europe. The initiative provides financial support for joint activities such as conferences, short-term scientific exchanges and publications to COST Actions bringing together researchers from at least 7 countries. The COST Actions are flexible, fast and efficient networking instruments that make it possible to cooperate and coordinate nationally funded research activities. COST Actions have an objective, defined goals and clear deliverables. They should involve between 7 and 25 countries (special rules for “COST Inclusiveness Target Countries” apply). COST supports high-risk, innovative and emerging research themes, but does not set any research priorities. The financial support provided by COST covers the costs of research coordination (meetings, publications, travel expenses, conferences, etc.). COST does not fund research itself. This is done at national level. Researchers can launch their own actions by submitting a project proposal. The duration of an action is generally 4 years. To launch an action, the researcher must submit a project proposal to an open call. COST calls are open permanently. It is recommended that one those interested contact the national coordinator, present in every COST member country. In Luxembourg, the National Research Fund has been named the national coordinator. In addition, researchers are invited to participate in funded COST actions. A list of running actions is available on the COST website. In order to be nominated to a COST Action, Luxembourg based researchers need to return the completed COST action form to the COST National Coordinator via email.