planetary nebula

This type of emission nebula forms when a star dies and emits a glowing shell of gas.

A giant cosmic necklace glows brightly in a newly released image from the Hubble Space Telescope.

NASA's Kepler Space Telescope will look hard at the object to see if it has any companions.

Hubble snaps stunning shot of dying star

A star's last gasp at the final stage of its life has been frozen for all time in a new photo by the Hubble Space Telescope.

Astronomers have found evidence of buckyballs — carbon molecules shaped like soccer balls — in the nebula around a distant white dwarf star.

Student choice of Owl Nebula wins contest for Gemini North photo op.

Astronomers identify planetary nebulas of massive dead stars.

New image of a gaseous space nebula reveals tens of thousands of giant comet-like knots raining down.

M87 found to be missing part of star halo and on a galactic collision course.