A two-megawatt windmill is made up of 260 tons of steel that required 300 tons or iron ore and 170 tons of coking coal to build.
NASA’s Van Allen Probe A to Re-Enter Atmosphere
NASA’s Van Allen Probe A is expected to re-enter Earth’s atmosphere, almost 14 years after launch. From 2012 to 2019, the spacecraft and its twin, Van Allen Probe B, flew through the Van Allen belts, rings of charged particles trapped by Earth’s magnetic field, to understand how particles were gained and lost. The belts shield Earth from cosmic radiation, solar storms, and the constantly streaming […]
About Subsonic Flight Demonstrator (SFD) Project
The purpose of the Subsonic Flight Demonstrator (SFD) project is to engage with industry and other government organizations to identify, select, and mature key airframe technologies, such as new wing designs, that have a high probability of transition to the next generation single-aisle seat class airliner. Moving technologies from a research environment to a production environment […]