... , traces of assault and battery, but no corpse. The southern planetary nebula SuWt 2 is the scene of the crime, some 6,500 light-years from Earth in the direction of the ...
... -energy radiation from the hot white dwarf makes the blown gas to shine for a short period of time, and the result is one of the most colourful and beautiful astronomical objects: a planetary nebula.
The Hubble Space Telescope photographed a planetary nebula to commemorate the decommissioning of a super camera.
The Hubble Space Telescope photographed a planetary nebula to commemorate the decommissioning of a super camera.
... "Super Planetary Nebulae." The new objects are unusually strong radio sources. Whereas the existing population of planetary nebulae is found around small stars comparable in size to our Sun, the new ...
... only a few weeks previously. The pre-explosion images showed that this particular star was surrounded by a planetary nebula.
"Although several novae are discovered each year in our Galaxy, this is ...
... star cluster NGC 2818A. Both the cluster and the nebula reside over 10,000 light-years away, ... (the Compass). NGC 2818 is one of very few planetary nebulae in our galaxy located within an open cluster. ...
The Helix Nebula, NGC 7293, is not only one of the most interesting and beautiful planetary nebulae; it is also one of the closest nebulae to Earth, at a distance of only 710 light years away. A new ...
... look like a massive fireworks display in space."
The Helix Nebula is a planetary nebula, and also is one of the closest nebulae to Earth. The process of developing a nebula occurs slowly ...
Australian astronomers have settled a 30-year old argument and ruled out a one-size-fits-all mechanism for shaping planetary nebulae.
The diversity of colours, shapes, and sizes of planetary nebulae make them fascinating objects. In this photo ... rather unique view combining both optical and near-infrared data of the Ring Nebula (M57).
... captured a huge atmosphere of hydrogen and helium.
"According to the core accretion model, as the original planetary nebula cooled, planetesimals collided and stuck together in a runaway effect that ...
... a quarter of the full Moon — it can be studied in much greater detail than most other planetary nebulae and has been found to have an unexpected and complex structure. All around the inside of the ...
... a recent change of chemistry experienced by the star.
The scientists hypothesize that as the central star of a planetary nebula ages and dies, its heavier elements do not make their way to the star's ...
New pictures of a planetary nebula, a stellar nursery, and scads of sparkling galaxies were among the images released as part of a live astronomy webcast, Around the World in 80 Telescopes.
