The spacecraft has three main missions: to investigate the outer layer of the Sun, to determine how it expels material into space and the effect of this material on Earth's environment, and to probe the Sun's interior structure.

Big Uglies in free fall had been known to suffer reverse peristalsis, as if they were expelling poisonous material they had swallowed.

It apparently expels material in this way about every 1,500 years, making spectacular coloured layers around it, with the original star still visible at the centre.

When the power of the digestive secretion had been diluted by the food entering the stomach their effect on the muscles diminished, allowing the pillars to partially collapse again and expel undigested material.

Shafts were drilled at the site before the test in order to accelerate sample collection after explosion, so that explosion would expel radioactive material from the epicenter through the shafts and to collecting volumes near the surface.

The accretion led to the formation of a precessing accretion disk, which was expelling material along its rotational axis leading to the formation of jets and knots.