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The final expulsion of gas by a star as it forms a planetary nebula --- theionized shell of gas often observed surrounding a young white dwarf --- is oneof the most poorly understood stages of stellar evolution. Such nebulae formextremely rapidly (about 100 years for the ionization) and so the formationprocess is inherently difficult to observe. Particularly puzzling is how aspherical star can produce a highly asymmetric nebula with collimated outflows.Here we report optical observations of the Stingray Nebula which has become anionized planetary nebula within the past few decades. We find that thecollimated outflows are already evident, and we have identified the nebularstructure that focuses the outflows. We have also found a companion star,reinforcing previous suspicions that binary companions play an important rolein shaping planetary nebulae and changing the direction of successive outflows.Comment: 9 pages + 3 figures. To appear in Nature, 2 April 199

Birth and early evolution of a planetary nebula