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![]() by Staff Writers San Antonio TX (SPX) May 05, 2017
A sounding rocket originally developed as a prototype for NASA's next generation of space-based solar spectrographs will make its third flight tomorrow, May 5, at 12:25 p.m. MDT from White Sands, N.M. The Rapid Acquisition Imaging Spectrograph Experiment (RAISE), designed and built by Southwest Research Institute (SwRI), carries an ultraviolet imaging spectrograph targeting an active region of the Sun to better understand the dynamics that cause solar eruptions. The brief flight, offering five minutes of observations, will coordinate with three orbiting satellites - the Solar Dynamics Observatory (SDO), the Hinode Solar Observatory, and the Interface Region Imaging Spectrograph (IRIS) - to gather multiple data perspectives of the same solar activity. "Using sounding rockets to get out of Earth's atmosphere provides us with fantastic data at a relatively low cost," said RAISE Principal Investigator Dr. Don Hassler of SwRI's Space Science and Engineering Division. "In particular, we expect this flight to provide some of the highest cadence spectral observations of the Sun at these wavelengths ever taken." Scientific research objectives of the flight are to study the small-scale dynamics of coronal loops, the nature of high-frequency waves in the solar atmosphere, and the nature of transient brightenings in the solar network. RAISE previously has flown twice. During a November 2014 flight, the spectrograph gathered 1,500 images of the Sun over that five-minute mission, focusing on the changes occurring near active regions. Its maiden launch, in August 2010, generated observations of the dynamics and heating of the solar chromosphere and corona. RAISE is pushing the limits of high-cadence observations. Pushing these limits is challenging, but this is exactly what the NASA sounding rocket program is for," Hassler said. NASA's Sounding Rocket Program oversees the RAISE mission. Despite these brief flight times, sounding rocket missions play a vital role in the NASA mission of advancing new technologies and instrumentation and qualifying them for space in a low-cost, rapid turn-around environment.
![]() Durham, UK (SPX) Apr 27, 2017 Large and small scale solar eruptions might all be triggered by a single process, according to new research that leads to better understanding of the Sun's activity. Researchers at Durham University, UK, and NASA's Goddard Space Flight Center, USA, used 3D computer simulations to show a theoretical link between large- and small-scale eruptions that were previously thought to be driven by differe ... read more Related Links Southwest Research Institute Solar Science News at SpaceDaily
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