A strange field of speculation is opened by this phenomenon ... here we have a star fitfully vari...

Planetary nebulae present a fascinating range of shapes andmorphologies. They are ideal laborat...

On April 28 1986 Cornelis de Jager reached the age of 65 years. On April 30 he officially retired...

This long-awaited graduate textbook, written by two pioneers of the field, is the first to provid...

This long-awaited graduate textbook, written by two pioneers of the field, is the first to provid...

Planetary nebulae present a fascinating range of shapes and morphologies. They are ideal laborato...