ANS is committed to advancing, fostering, and promoting the development and application of nuclear sciences and technologies to benefit society.
Explore the many uses for nuclear science and its impact on energy, the environment, healthcare, food, and more.
Explore membership for yourself or for your organization.
Conference Spotlight
2026 ANS Annual Conference
May 31–June 3, 2026
Denver, CO|Sheraton Denver
Latest Magazine Issues
Feb 2026
Jul 2025
Latest Journal Issues
Nuclear Science and Engineering
March 2026
Nuclear Technology
February 2026
Fusion Science and Technology
January 2026
Latest News
Fusion roundup: Helion sets temperature record; Inertia raises $450M
Two start-ups working to commercialize fusion energy made headlines last week. Helion Energy announced that its Polaris prototype fusion energy machine recently demonstrated measurable deuterium-tritium fusion and achieved a plasma temperature of 150 million degrees Celsius (MÂșC). Newcomer Inertia Enterprises announced that it has raised $450 million in its Series A fundraising round.
Pietro Barabaschi has served as the Director General of the ITER Organization since 2022, overseeing the reforms and the construction of the ITER project. Prior to this role, he led an R&D Department in Fusion-for-Energy (F4E), the European Joint Undertaking responsible for delivering European components to the ITER and Broader Approach (BA) Fusion international projects. In this capacity, he was specifically accountable for the European contributions to the three projects implemented under the Broader Approach Agreement between Euratom and the Government of Japan: JT60SA, IFMIF/EVEDA, and IFERC. During 2015 and again in 2022, he acted as the Interim Director of F4E, managing the overall operations of the organisation, the project management infrastructure, and the implementation of reform measures within the ITER Management framework. Before joining F4E and until early 2006, Pietro was the Deputy Project Leader and head of the Design Integration Division of the ITER International Team at the Munich Joint Work Site and previously in San Diego, USA. Shortly after completing his university studies in Electromechanical Engineering, he joined the JET Project in Culham, UK, where he contributed to the machine development department.
Mr. Barabaschi has dedicated his career to Nuclear Fusion research, with a focus on developing and constructing the research infrastructures essential for advancing nuclear fusion as a viable energy source.
Last modified February 12, 2026, 8:54am MST