Deep Fission, a nuclear startup, has announced its intention to go public again through a Nasdaq IPO, aiming to raise $157 million. This follows a previous attempt at a public listing via a reverse merger with Surfside Acquisition, which ultimately did not result in any actual trading of its stock. The company, which is developing subterranean reactors for AI data centers, is facing significant financial hurdles, with its deficit growing to $88.1 million from $56.2 million over the past year. Additionally, its timeline for achieving criticality has become uncertain, as it no longer provides an estimate for when its first reactor will be operational. Currently, Deep Fission is focused on drilling a test well, which is much smaller than what will be required for commercial reactors, indicating challenges ahead in scaling its operations. Despite receiving an $80 million equity investment, including $20 million from Blue Owl, the company still carries a “going concern” warning, suggesting it may run out of funds within the next year if the IPO is not successful. The contrasting progress of competitors like X-energy, which is generating revenue and advancing in regulatory processes, highlights the challenges Deep Fission faces in a sector where enthusiasm often outpaces technical and regulatory realities.