Radiant Nuclear has successfully raised $100 million in Series C funding, with participation from StepStone platform managers Founders Fund and Felicis. This funding will enhance Radiant Nuclear's microreactor capabilities and aid in bringing portable nuclear power solutions to market. Meanwhile, the landscape for nuclear startups is becoming increasingly competitive as energy giant Enel enters the sector, posing new challenges for small modular reactor (SMR) companies. Additionally, Tokamak Energy, a leading nuclear fusion startup, has raised $125 million to develop its unique egg-shaped reactor design, further intensifying the competition in the nuclear energy space. This funding round is seen as a significant boost for the future of nuclear technology and innovation.