Definition: diffuse mass of interstellar dust or gas; galaxy
Definition: diffuse mass of interstellar dust or gas; galaxy
Sentences Containing 'nebula'
He discovers in conversation with the Martians that their need for the oxygen is driven by the threat of radiation emanating from the Crab Nebula, which will kill the Martians without the protection of an oxygenated atmosphere.
The average density of matter in this region is about 106 particles per m3, but this varies from a low of about 104 – 105 in regions of sparse matter up to about 108 – 1010 in dark nebula. Regions of star formation may reach 1012 – 1014 particles per m3 (as a comparison, Earth's atmospheric density at sea level is on the order of 1025 particles per m3).
These atoms can be ejected into the interstellar medium by stellar winds, or when evolved stars begin to shed their outer envelopes such as during the formation of a planetary nebula. The cataclysmic explosion of a supernova will generate an expanding shock wave consisting of ejected materials.
Planetary disk formation of precursor molecules was determined, in large part, by the temperature of the solar nebula. Since the temperature of the solar nebula decreased with heliocentric distance, scientists can infer a dust grain's origin(s) with knowledge of the grain's materials.
The materials in a single interplanetary dust particle often show that the grain elements formed in different locations and at different times in the solar nebula. Most of the matter present in the original solar nebula has since disappeared; drawn into the Sun, expelled into interstellar space, or reprocessed, for example, as part of the planets, asteroids or comets.
We can picture an IDP as a "matrix" of material with embedded elements which were formed at different times and places in the solar nebula and before our solar nebula's formation.
Examples of embedded elements in cosmic dust are GEMS, chondrules, and CAIs. From the solar nebula to Earth.
The arrows in the adjacent diagram show one possible path from a collected interplanetary dust particle back to the early stages of the solar nebula. We can follow the trail to the right in the diagram to the IDPs that contain the most volatile and primitive elements.
One might see these classifications: Distinctions between those types of nebula are that different radiation processes are at work.
For example, H II regions, like the Orion Nebula, where a lot of star-formation is taking place, are characterized as thermal emission nebulae.
Supernova remnants, on the other hand, like the Crab Nebula, are characterized as nonthermal emission (synchrotron radiation).
While the League had its serious side and often faced world-threatening villains, it also featured such characters as the lovably inept G'Nort, the worst Green Lantern in the Corps; Mr. Nebula, the interplanetary decorator; the Injustice League, a bunch of bumbling losers; and a flock of homicidal penguins who had been hybridized with piranhas.
He was nominated for a Hugo Award for Best Short Story in 1995 for "Mrs. Lincoln's China", and nominated for a Nebula Award for Best Novelette in 2002 for "The Pagodas of Ciboure".
Hugo and Nebula award-winning science fiction author Greg Bear called "Pyrotechnicon" ‘A rich dessert of a novel, filled with finely crafted wit and adventure — Adam Browne has resurrected Cyrano in fine form.
In 1999 she won the Nebula Award for "The Cost of Doing Business," published in Amazing Stories.
Her story collaboration with Eileen Gunn, "Nirvana High" was nominated for the 2005 Nebula Award for novelette.
The Tarantula Nebula (also known as 30 Doradus, or NGC 2070) is an H II region in the Large Magellanic Cloud (LMC).
The Tarantula Nebula has an apparent magnitude of 8.
Considering its distance of about 49 kpc (160,000 light years), this is an extremely luminous non-stellar object. Its luminosity is so great that if it were as close to Earth as the Orion Nebula, the Tarantula Nebula would cast shadows.
The nebula resides on the leading edge of the LMC, where ram pressure stripping, and the compression of the interstellar medium likely resulting from this, is at a maximum.
At its core lies the compact star cluster R136 (approximate diameter 35 light years) that produces most of the energy that makes the nebula visible.
In addition to R136, the Tarantula Nebula also contains an older star cluster – catalogued as Hodge 301 – with an age of 20–25 million years.
The closest supernova observed since the invention of the telescope, Supernova 1987A, occurred in the outskirts of the Tarantula Nebula.
Shalabi Effect is the eponymous debut album of Shalabi Effect. The album cover is taken from the famous Eagle Nebula Pillars of Creation photo made by NASA's Hubble Space Telescope.
Radon Labs is the creator of the Nebula Device, an Open Source 3D engine.
α. The Crab Nebula, now a supernova remnant in the constellation of Taurus, was the result of the event in question; it attained peak brilliance on the date that the Chacoans presumably sighted it.
It was serialized in the January and February 1965 issues, and won a Nebula Award, an annual award voted on by science fiction writers.
Brad Linaweaver's "Moon of Ice", which appeared in March 1982, was nominated for a Nebula award; Martin's "Unsound Variations", which had appeared the issue before, was nominated for both a Nebula and a Hugo award. Historian James Gunn's assessment of "Amazing" in the 1980s is that Mavor, Scithers and Price, who between them edited "Amazing" for a decade, were unable to sustain the standards established by Ted White in the 1970s.
He is noted for his use of American Indian themes and has had multiple Nebula Award nominations.
He has had three Nebula Award nominations: two for the short stories "Time Deer" and "A Sunday Visit with Great-grandfather" and one for the novelette "The Bleeding Man".
Stern created the villain, Nebula, who falsely claimed to be the granddaughter of Thanos.
The episode was also nominated for a Best Dramatic Presentation Hugo Award and a Best Script Nebula Award, both given for excellence in science fiction and fantasy writing.
The novel won the 2012 Nebula Award for Best Novel.
The book was nominated for the 2013 Hugo Award for Best Novel, was shortlisted for the 2012 BSFA Award for Best Novel and the 2013 Arthur C. Clarke Award, was honor listed for the 2012 James Tiptree, Jr. Award, and won the 2012 Nebula Award for Best Novel.
With the other abstract beings, they battled Thanos, and then battled Nebula when she obtained the Gauntlet from Thanos.
McKenna's posthumously published short story "The Secret Place" won the Nebula Award for Best Short Story in 1966 and was nominated for the Hugo Award for Best Short Story in 1967.
It is the first anthology of this type to be entirely conceived and written by winners of the Nebula Award. The scenery is set in a fictional double planet system in orbit around an actually existing red dwarf star (HD36395; also known as Gliese 754 and Wolf 1453), about 20 light years from our solar system.
Name (in universe) denotes astronomical phenomenon and (real world) pays tribute to the Nebula Award for science fiction writing.
It won the Hugo Award for Best Novella in 1981 and was also nominated for the Nebula Award in 1980.
It won the Hugo Award for Best Novelette in 1987, and was nominated for the Nebula Award. Plot summary.
More Vocab Wordscanter - slow gallop; V. CF. trot
reputed - supposed; Ex. reputed father of the child; V. repute: consider; N. repute: reputation; esteem
precursor - forerunner; predecessor
mercurial - capricious; quick and changing; fickle; containing the element mercury; Ex. mercurial temper; CF. mood
feint - trick; shift; sham blow; feigned attack to draw away defensive action; V.
vivid - (of light or color) bright and distinct; evoking lifelike mental images; Ex. vivid red hair/description
marred - damaged; disfigured; V. mar: spoil; disfigure
smirk - conceited smile; offensively self-satisfied smile (often at someone else's misfortune); V.
trickster - person who cheats people
resumption - taking up again; recommencement; V. resume: begin or take up again; take or occupy again; Ex. Kindly resume your seats.