Oldest planetary nebula discovered in open cluster M37

(ORDO NEWS) -- An international team of astronomers, led by scientists from the Laboratory for

Rare and oldest planetary nebula discovered

(ORDO NEWS) -- An international team of astronomers has discovered a rare planetary nebula inside

Simply complicated: Planetary Nebula

(ORDO NEWS) -- Specifications Stars can be classified into two types: Type I stars, enriched

Spatial-kinematic properties of the planetary Abel nebula 48

(ORDO NEWS) -- Astronomers have conducted a comprehensive spatial-kinematic study of the planetary nebula known