His team, which includes researchers from the National Centre for Atmospheric Research (NCAR) and the Research Institute in Astrophysics and Planetology, used combined data from a telescope based in Hawaii and NASA's solar satellite
to investigate powerful magnetic waves, known as Alfven waves, where the Sun's wind originates.
That's what an innovative project is doing with data from NASA's two STEREO solar satellites
. Each carries a Heliospheric Imager (HI) that looks for faint wisps of solar wind in wide fields off to the Sun's side.
The images are from a mixture of professional observatories, solar satellites
, and amateur observers.
Similar in principle to the European Sail Tower, it consists of a constellation of tether-based solar satellites
that would initially be deployed in low Earth orbit, then moved to an elliptical Earth orbit for operation.