• Kuiper Belt
  • The dust originates in the Kuiper Belt, a cold-storage zone beyond Neptune where millions of icy bodies -- including Pluto -- orbit the sun. (blogspot.com)
  • Our new simulations also allow us to see how dust from the Kuiper Belt might have looked when the solar system was much younger," said Christopher Stark, who worked with Kuchner at NASA Goddard and is now at the Carnegie Institution for Science in Washington, D.C. "In effect, we can go back in time and see how the distant view of the solar system may have changed. (blogspot.com)
  • During the simulation, the grains were placed into one of three types of orbits found in today's Kuiper Belt at a rate based on current ideas of how quickly dust is produced. (blogspot.com)
  • To get a sense of what younger, heftier versions of the Kuiper Belt might have looked like, the team sped up the dust production rate. (blogspot.com)
  • In the past, the Kuiper Belt contained many more objects that crashed together more frequently, generating dust at a faster pace. (blogspot.com)
  • The scientists estimate the increased dust reflects conditions when the Kuiper Belt was, respectively, 700 million, 100 million and 15 million years old. (blogspot.com)
  • As collisions become increasingly important, the likelihood that large dust grains will survive to drift out of the Kuiper Belt drops sharply. (blogspot.com)
  • Spaceflight portal Beta Pictoris Band-limited Coronagraph Super-Earth Exozodiacal dust Kuiper Belt Minimum Mass Circumstellar habitable zone RS Canum Venaticorum variable RS Ophiuchi Sirius Vega Epsilon Eridani G 29-38 61 Cygni 51 Ophiuchi Kuchner, M. & Traub, W.A. (2002). (wikipedia.org)
  • Circumstellar
  • It was later found that the Star's steep decline in light was due to the circumstellar dust located around the star, which was present at a temperature of ~680 K. Further infrared data recorded by the United Kingdom Infrared Telescope was published in 2000, in which findings of the changing absorption lines were discussed. (wikipedia.org)
  • temperature
  • Dust helps to lower global temperature by reflecting sunlight, as well as by depositing iron in the ocean and thus fertilizing marine organisms that remove carbon dioxide from the atmosphere. (innovations-report.com)
  • The apparent temperature continued to cool to below 6,000 K and the star was gradually obscured at optical wavelengths by the formation of carbon dust, similar to an R CrB star. (wikipedia.org)
  • V605, discovered in 1919, is the only other known star observed during the high luminosity phase of a very late thermal pulse, and Sakurai's Object is modeled to increase in temperature in the next few decades to match the current state of V605. (wikipedia.org)
  • If correct, this implies that the ideal Big Bang model is fundamentally unable to describe the physical universe endowed with pressure and temperature. (wikipedia.org)
  • moons
  • As a result, only higher-than-average-velocity meteoroid dust, ejected earlier in the approach of the comet, allow for impacts on Mars, its moons, and orbiting spacecraft. (wikipedia.org)
  • shift
  • Commenting on the shift in 2013 Christian stated "it became clear that Paolo and the Dust games would be better served by a partner who specializes in the unique business of miniature games. (wikipedia.org)
  • Design changes, in particular to Red Dwarf, were generally disliked, and the shift from models to CGI was not seen as an improvement. (wikipedia.org)
  • decrease
  • For the six scenarios, the decrease in extent of desert dust sources in 2090-2099 compared to 1990-1999 ranges from 0 to 39 percent. (innovations-report.com)
  • The decrease in how much dust gets entrained into the atmosphere is even more dramatic: from 20 to 63 percent, depending on the scenario. (innovations-report.com)
  • During the second half of 1998 an optically thick dust shell obscured Sakurai's Object, causing a rapid decrease in visibility of the star, until in 1999 it disappeared from optical wavelength observations altogether. (wikipedia.org)
  • thermal
  • We present a simple probabilistic model for dust aerosol detection, analysing MODIS 11.3µm and 12.02µm thermal emissive bands. (osapublishing.org)
  • V605 Aquilae, which was discovered in 1919, is the only other star known to have been observed during the high luminosity phase of a very late thermal pulse, and models predict that Sakurai's Object, over the next few decades, will follow a similar life cycle. (wikipedia.org)
  • distribution
  • Many games from other companies use a similar distribution model, but because "Living Card Game" and its initials "LCG" are registered trademarks of Fantasy Flight Games, other publishers do not use this term. (wikipedia.org)
  • include
  • A paper on the new models, which are the first to include collisions among grains, appeared in the Sept. 7 edition of The Astronomical Journal. (blogspot.com)
  • similar
  • Mitra is not alone in this conclusion: Robertson and Leiter (2002) reached a similar conclusion in their introduction of the concept of a magnetospheric eternally collapsing object as an alternative to the black hole model. (wikipedia.org)
  • simple
  • Consequently, dark energy, his research claims, is an illusion caused by the departure of the complex universe from the simple Big Bang model. (wikipedia.org)
  • show
  • The computer model studies show less wind, more moisture, and enhanced vegetation in desert areas as carbon dioxide increases over the next century, keeping more of the world s dust on the ground. (innovations-report.com)
  • original
  • Using separate models that employed progressively higher collision rates, the team produced images roughly corresponding to dust generation that was 10, 100 and 1,000 times more intense than in the original model. (blogspot.com)
  • stars
  • We're hoping our models will help us spot Neptune-sized worlds around other stars. (blogspot.com)
  • A faint reflection nebulosity around the brightest stars was thought at first to be left over from the formation of the cluster (hence the alternative name Maia Nebula after the star Maia), but is now likely an unrelated foreground dust cloud in the interstellar medium, through which the stars are currently passing. (wikipedia.org)
  • loss
  • Observations from the United Kingdom Infrared Telescope (UKIRT) in 1999 revealed that the star is in a RCB-like phase with the release of dust and huge loss of mass. (wikipedia.org)
  • clear
  • This is what creates the clear zone near the planet as well as dust enhancements that precede and follow it around the sun. (blogspot.com)
  • effects
  • Chemical toxicity of uranium has to be reconsidered as the primary mechanism through which uranium dust can cause health effects at long term. (techconnectworld.com)
  • Most other model shots of crafts in space being likewise replaced with computer-generated special effects. (wikipedia.org)
  • view
  • The models also provide a glimpse of how this view might have changed as our planetary system matured. (blogspot.com)