An ambitious satellite builder will launch one of the highest-powered spacecraft ever built in the weeks ahead to demonstrate technology that will be required to build data centers in orbit. K2 Space , founded by brothers and former SpaceX engineers Karan and Neel Kunjur in 2022, has packed its satellite Gravitas into a SpaceX Falcon 9 rocket expected to launch as soon as the end of this month. Gravitas has a mass of two metric tons, with a 40 meter wingspan when its solar panels are unfolded. The point of the big satellite is big power: Gravitas is capable of producing 20 kW of electricity for use by payloads like powerful sensors, transceivers, and computers. For comparison, the even larger and more expensive ViaSat-3 spacecraft can generate more than 25 kW of power, while Elon Musk has said Starlink V3 satellites will generate 20 kW. But most spacecraft generate just a handful of kilowatts. “The future is higher power,” CEO Karan Kunjur explains.…