A tube-like space in which there is a strong magnetic field. Small flux tubes at the surface of the Sun, with a diameter of less than about 300 km, form Filigrees and Plages and may appear bright. Big
ger flux tubes, up to about 2,500 km diameter, appear dark and are called Pores or Sunspots
A mission in which a trajectory takes a space probe close to a Solar System body (planet, satellite, asteroid, comet) but does not permit it to enter an orbit about the body.
Flysch is a sequence of sedimentary rocks that is deposited in a deep marine facies in the foreland basin of a developing orogen. Flysch is formed under deep marine circumstances, in a quiet and low-e
nergetic depositional environment. [Wikipedia]