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 by Staff Writers West Lafayette IN (SPX) Jul 17, 2019
Finding inexpensive solutions for propelling CubeSats is one of the most critical components of the rapidly growing industry of commercial launches of satellites the size of a loaf of bread. The small size and relatively low cost have made CubeSats popular choices for commercial launches in recent years. The first CubeSat was launched in 1999. Since then, more than 1,000 have been launched. The rapid development and application of nanosatellite technology has vastly accelerated mission complexity - sparking interest in robust, low-power and high-specific impulse micropropulsion systems. Purdue University researchers have created a novel micropropulsion system for nanosatellite applications using a liquid fed pulsed-plasma thruster. It uses a liquid propellant for Lorentz-force pulsed-plasma accelerator and extended lifetime ignition system driven by nanosecond long pulses. "Our innovation helps address current challenges with CubeSat micropropulsion systems, including short operational lifetimes, contamination risks and economic challenges," said Alexey Shashurin, an assistant professor of aeronautics and astronautics in Purdue's College of Engineering. "Our system is better able to operate reliably for the entire mission and the liquid propellant we use does not create the contamination risks to the subsystems that we see with current options." The Purdue team's work was presented in June at the 2019 IEEE Pulsed Power and Plasma Science Conference in Orlando, Florida. Overall popularity of the CubeSats is driven heavily by the great advancement in miniaturization of electronic components and sensors that allows for new kinds of space missions and measurements using a CubeSat. "We have taken the next step toward developing a robust propulsion system for CubeSats to provide for necessary maneuvering during missions," Shashurin said. "Developing innovative technologies like this is one of my passions." One of the student researchers who worked on the technology, Adam Patel, was named one of "Tomorrow's Engineering Leaders" by Aviation Week Network and the American Institute of Aeronautics and Astronautics. Patel is a senior in the School of Aeronautics and Astronautics. Shashurin and his team worked with the Purdue Research Foundation Office of Technology Commercialization to file a provisional patent on the technology. They are looking for partners to continue development. Their work aligns with Purdue's Giant Leaps celebration of the university's global advancements in space exploration as part of Purdue's 150th anniversary. It is one of the four themes of the yearlong celebration's Ideas Festival, designed to showcase Purdue as an intellectual center solving real-world issues.
Spaceflight to launch multiple spacecraft from ISS via Cygnus Seattle WA (SPX) Jul 11, 2019 Spaceflight reports it is providing mission management and rideshare integration services on an upcoming launch from the International Space Station (ISS) and Northrop Grumman's Cygnus launch vehicle. Spaceflight bought the capacity through an arrangement with Hypergiant SEOPS for a variety of customer spacecraft. In a unique arrangement, the spacecraft will be arriving at the ISS through an ISS Cargo Resupply Mission aboard via a SpaceX Falcon 9 Dragon capsule from Cape Canaveral Air Force Statio ... read more
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