NASA’s Tandem Reconnection and Cusp Electrodynamics Reconnaissance Satellites or TRACERS made it safely into low-Earth orbit. Led by David Miles at the University of Iowa and managed by Southwest Research Institute, the mission will study magnetic reconnection to understand how the phenomena can impact communications satellites, GPS systems, and power grids on Earth. https://lnkd.in/g5T7nfZv
TRACERS satellites launched to study magnetic reconnection effects on Earth.
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Before every rocket launch, NASA employs a critical safety measure known as the Sound Suppression System, which involves releasing approximately 450,000 gallons of water in a matter of seconds. This deluge is not for show but serves a vital purpose: to protect the rocket, its payload, and the launch platform from the intense acoustic energy and heat generated during liftoff. When a rocket’s engines ignite, they produce powerful sound waves and extreme temperatures that can reach up to 6,000°F (3,315°C). Without mitigation, these forces could cause significant structural damage, potentially compromising the rocket or even leading to catastrophic failure.
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Why would NASA bother dumping nearly half a million gallons of water during a rocket launch only for it to dissipate as steam? The answer lies in the system's name: sound and fire suppression. Fire suppression is easy to understand: The combustion of rocket fuel generates an enormous amount of heat, which can seriously damage the surface of the launchpad. Jets of water create a protective layer of steam between the rocket and the launchpad's surface, mitigating the damage. Sound suppression is something most people don't realize the need for, but the sound waves generated by a rocket launch can do even more damage than the heat. Rockets are really, really loud, reaching 200 decibels, which is significantly higher than the decibel level of a jet plane. Sound waves from recent SpaceX Starship rocket launches have set off car alarms as far as 10 miles away! For NASA, a major concern is that the powerful acoustic energy from a rocket launch could damage delicate equipment onboard the craft, putting billions of dollars and, more importantly, the safety of any crew members at risk. Blasting the launchpad with water effectively creates a cushion to absorb some of that energy, and with it, NASA can knock a launch from 200 dB, all the way down to 142 dB.
Before every rocket launch, NASA employs a critical safety measure known as the Sound Suppression System, which involves releasing approximately 450,000 gallons of water in a matter of seconds. This deluge is not for show but serves a vital purpose: to protect the rocket, its payload, and the launch platform from the intense acoustic energy and heat generated during liftoff. When a rocket’s engines ignite, they produce powerful sound waves and extreme temperatures that can reach up to 6,000°F (3,315°C). Without mitigation, these forces could cause significant structural damage, potentially compromising the rocket or even leading to catastrophic failure.
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Huge congrats to the team! TRACERS is a vital step toward demystifying magnetic reconnection and its ripple effects on everything from satellites to ground-based infrastructure. Will the findings help improve real-time space weather forecasting for critical systems like GPS and grid stability?