BlackRock, an American multinational investment company, led a $52m Series D round in Kairos Aerospace, a high-frequency aerial methane detection company, with participation from Hartree Partners, DCVC Energy Innovation Capital. "We are pleased to complete this funding round with the support of funds and accounts managed by BlackRock, Hartree, and existing investors. With this fresh addition of capital and expertise, Insight M is positioned to bring its vitally important, market-leading methane-mitigation technology to customers around the world-to the benefit of all," Zachary Bogue, DCVC Co-Founder and Managing Partner.