Scott Allie Promoted to Editor-in-Chief at Dark Horse

October 9, 2012 at 6:43 pm | Posted in Dark Horse, News | Leave a comment
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From Dark Horse:

Dark Horse is pleased to announce that Scott Allie has been promoted to editor in chief.

Allie, who celebrated his eighteenth year with the company last month, made his mark at Dark Horse quickly when he began editing Mike Mignola’s Hellboy only a month after joining the Editorial department. Since that time, he has gone on to both write and edit some of the company’s top-selling books, including Buffy the Vampire Slayer and cult favorites like The Goon,and he continues to collaborate with Mignola, including cowriting the upcoming series B.P.R.D. Hell on Earth: The Abyss of Time. Continue Reading Scott Allie Promoted to Editor-in-Chief at Dark Horse…

Eye on the Sky: Helix Nebula

October 9, 2012 at 11:23 am | Posted in Eye on the Sky, Regular Feature, Science News | Leave a comment
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“A dying star is throwing a cosmic tantrum in this combined image from NASA’s Spitzer Space Telescope and the Galaxy Evolution Explorer (GALEX), which NASA has lent to the California Institute of Technology in Pasadena. In death, the star’s dusty outer layers are unraveling into space, glowing from the intense ultraviolet radiation being pumped out by the hot stellar core.

This object, called the Helix nebula, lies 650 light-years away, in the constellation of Aquarius. Also known by the catalog number NGC 7293, it is a typical example of a class of objects called planetary nebulae. Discovered in the 18th century, these cosmic works of art were erroneously named for their resemblance to gas-giant planets.

Planetary nebulae are actually the remains of stars that once looked a lot like our sun. These stars spend most of their lives turning hydrogen into helium in massive runaway nuclear fusion reactions in their cores. In fact, this process of fusion provides all the light and heat that we get from our sun. Our sun will blossom into a planetary nebula when it dies in about five billion years.

When the hydrogen fuel for the fusion reaction runs out, the star turns to helium for a fuel source, burning it into an even heavier mix of carbon, nitrogen and oxygen. Eventually, the helium will also be exhausted, and the star dies, puffing off its outer gaseous layers and leaving behind the tiny, hot, dense core, called a white dwarf. The white dwarf is about the size of Earth, but has a mass very close to that of the original star; in fact, a teaspoon of a white dwarf would weigh as much as a few elephants!

The glow from planetary nebulae is particularly intriguing as it appears surprisingly similar across a broad swath of the spectrum, from ultraviolet to infrared. The Helix remains recognizable at any of these wavelengths, but the combination shown here highlights some subtle differences.

The intense ultraviolet radiation from the white dwarf heats up the expelled layers of gas, which shine brightly in the infrared. GALEX has picked out the ultraviolet light pouring out of this system, shown throughout the nebula in blue, while Spitzer has snagged the detailed infrared signature of the dust and gas in yellow A portion of the extended field beyond the nebula, which was not observed by Spitzer, is from NASA’s all-sky Wide-field Infrared Survey Explorer (WISE). The white dwarf star itself is a tiny white pinprick right at the center of the nebula.

The brighter purple circle in the very center is the combined ultraviolet and infrared glow of a dusty disk circling the white dwarf (the disk itself is too small to be resolved). This dust was most likely kicked up by comets that survived the death of their star.

Before the star died, its comets, and possibly planets, would have orbited the star in an orderly fashion. When the star ran out of hydrogen to burn, and blew off its outer layers, the icy bodies and outer planets would have been tossed about and into each other, kicking up an ongoing cosmic dust storm. Any inner planets in the system would have burned up or been swallowed as their dying star expanded.

Infrared data from Spitzer for the central nebula is rendered in green (wavelengths of 3.6 to 4.5 microns) and red (8 to 24 microns), with WISE data covering the outer areas in green (3.4 to 4.5 microns) and red (12 to 22 microns). Ultraviolet data from GALEX appears as blue (0.15 to 2.3 microns).” ~ NASA Website Image Gallery

Image Credit: NASA/JPL-Caltech

Posted by Synlah for Roqoo Depot

‘Crucible’ gets a new cover and release date

October 9, 2012 at 9:45 am | Posted in Art, Star Wars Books, Star Wars News | 1 Comment
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Del Rey has revealed a new cover for Star Wars: Crucible, as well as a July 2nd release date. The new cover focuses even more on the big 3 as well as giving them an older appearance. You can see the cover gallery below.

Continue Reading ‘Crucible’ gets a new cover and release date…

Book Review: ‘Hexed’ by Kevin Hearne

October 9, 2012 at 9:34 am | Posted in Books, Fantasy, Reviews | Leave a comment
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To help get readers introduced to some of the new Star Wars authors coming in 2013, we are continuing our review of Kevin Hearne’s entertaining Iron Druid Chronicles series. This week we take a look at Hexed. Click here to read our full review.

Posted By: Skuldren for Roqoo Depot.

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