California-based microreactor developer Antares raised $370M in Series C funding for advanced nuclear energy technology.
Investors: Paradigm, Caffeinated Capital, Point72 Ventures, Shine Capital, Industrious Ventures
Antares develops compact nuclear microreactors for defense and space applications, raising $470 million in Series C funding ($370M equity, $100M debt) to advance commercialization.
Three private reactors clear final safety gate, targeting July 4 criticality
Aalo, Antares, and Valar have cleared DOE safety reviews and entered final readiness phase; if approved by July 4, they become the first private reactors to operate outside NRC licensing.
Nominal raises $80M, lands $53M Air Force contract
Hardware testing platform Nominal closed Series B-2 at $1B valuation, then secured $53M Air Force IDIQ to standardize DoD test infrastructure, the real inflection point.
Air Force names first microreactor bases, targets 2030 deployment
The U.S. Air Force selected Buckley SFB and Malmstrom AFB to host nuclear microreactors by 2030, marking the first permanent on-site reactors at operational military installations and signaling a strategic pivot away from grid dependence.
ESA's Celeste IOD-1 Transmits Europe's First LEO Navigation Signal
ESA confirmed the first navigation signal from Celeste IOD-1 on April 8, a dual-frequency L- and S-band transmission from a 12U CubeSat that secures European spectrum rights before the May 2026 ITU deadline.