satellites News: 9 August 2025 - 14 August 2025

Satellites Powered by Water? The Revolutionary Propellant Changing Spaceflight
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Satellites Powered by Water? The Revolutionary Propellant Changing Spaceflight

Water propulsion for satellites can use steam propulsion (resistojet), electrolysis to hydrogen and oxygen for combustion, or water-plasma/ion thrusters for high-ISP propulsion. Momentus Space’s Vigoride uses a Microwave Electrothermal Thruster (MET) that microwaves water with solar power to boil it into plasma
August 16, 2025
Complete Guide to Satellite Earth Monitoring: How Space Tech Is Watching Our Planet Now
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Complete Guide to Satellite Earth Monitoring: How Space Tech Is Watching Our Planet Now

Landsat-1, launched in July 1972 as ERTS-1, became the first satellite dedicated to mapping Earth’s land resources and began a 50+ year continuous Landsat record. TIROS-1, launched in April 1960, was the world’s first weather satellite and delivered the first TV images
August 10, 2025

Technology News

  • AI could optimize the power grid, MIT expert says
    January 9, 2026, 4:00 AM EST. MIT's Priya Donti explains how AI could sharpen power-grid optimization. The aim is to keep supply and demand in balance in real time amid uncertainty on demand, fuel costs, and weather-driven renewable output. AI can fuse historical and real-time data to forecast how much renewable energy will be available and to solve complex trade-offs: which generators to run, how much to produce, when to charge or discharge batteries, and how to flex loads. These optimization tasks are computationally heavy, so operators rely on approximations that can be inaccurate, a problem as renewables grow. Better AI methods could push toward a cleaner, more reliable grid, though challenges remain in scaling, risk, and real-world deployment.