OrbitalHub

NASA dixit:

“Though close to home, the space immediately around Earth is full of hidden secrets and invisible processes. In a new discovery reported in the journal Nature, scientists working with NASA’s Magnetospheric Multiscale spacecraft — MMS — have uncovered a new type of magnetic event in our near-Earth environment by using an innovative technique to squeeze extra information out of the data.

Magnetic reconnection is one of the most important processes in the space — filled with charged particles known as plasma — around Earth. This fundamental process dissipates magnetic energy and propels charged particles, both of which contribute to a dynamic space weather system that scientists want to better understand, and even someday predict, as we do terrestrial weather. Reconnection occurs when crossed magnetic field lines snap, explosively flinging away nearby particles at high speeds. The new discovery found reconnection where it has never been seen before — in turbulent plasma. “

Credits Music: “Think Tank” and “Natural Time Cycles” by Laurent Dury from Killer Tracks

Credits Video: NASA’s Goddard Space Flight Center/Tai Phan (University of California, Berkeley): Lead Scientist/James Drake (University of Maryland): Scientist/Michael Shay (University of Delaware): Scientist/Jonathan Eastwood (Imperial College London): Scientist/Joy Ng (USRA): Producer/Mara Johnson-Groh (Wyle Information Systems): Writer/Tom Bridgman (GST): Data Visualizer/Lisa Poje (Freelance): Lead Animator/Josh Masters (USRA): Lead Animator/Walt Feimer (KBRwyle): Animator/Brian Monroe (USRA): Animator/Joy Ng (USRA): Animator/Mary P. Hrybyk-Keith (TRAX International Corporation): Graphic Designer/Colby Haggerty (University of Chicago): Visualizer/Ashley Michini (University of Pennsylvania): Visualizer/Tulasi Parashar (University of Delaware): Visualizer/Aaron E. Lepsch (ADNET Systems Inc.): Technical Support

 

NASA dixit:

“[…] the four spacecraft fly in a tetrahedron formation. This complex arrangement enables scientists to gather data about magnetic reconnection in 3D.

On its journey, MMS will observe a little-understood, but universal phenomenon called magnetic reconnection, responsible for dramatic re-shaping of the magnetic environment near Earth, often sending intense amounts of energy and fast-moving particles off in a new direction. Not only is this a fundamental physical process that occurs throughout the universe, it is also one of the drivers of space weather events at Earth. Truly understanding the process requires four identical spacecraft to track how such reconnection events move across and through any given space.”

Credit: NASA

Read more about the MMS mission…