Y-Combinator-backed start-up Momentus aims to drive down the cost of space travel with its revolutionary propulsion unit which runs on water, rather than chemicals. Founder Mikhail Kokorich said water is more efficient in space beyond gravity, and can get objects into geostationary orbit in half the time. The company has already raised $21 million (£15.7 million) from investors including Google Ventures and Andreessen Horowitz.
Y-Combinator-backed start-up Momentus aims to drive down the cost of space travel with its revolutionary propulsion unit which runs on water, rather than chemicals. Founder Mikhail Kokorich said water is more efficient in space beyond gravity, and can get objects into geostationary orbit in half the time. Momentus has signed an agreement with European launch services provider ECM Space, which will support the firm's inaugural test, scheduled for 2019, of its propulsion system on a microsatellite.