ScienceDaily: Astronomy News |
| Fire vs. ice: The science of ISON at perihelion Posted: 11 Dec 2013 10:29 AM PST After a year of observations, scientists waited with bated breath on Nov. 28, 2013, as Comet ISON made its closest approach to the sun, known as perihelion. Would the comet disintegrate in the fierce heat and gravity of the sun? Or survive intact to appear as a bright comet in the pre-dawn sky? |
| Announcing project AGORA: Ambitious comparison of computer simulations of galaxy evolution Posted: 11 Dec 2013 06:38 AM PST A long-standing difficulty with supercomputer simulations of the evolution of galaxies has been getting consistent results among different codes (programs) and with actual observations, so simulated galaxies look like real galaxies. But reproducibility is one of the most elementary principles in scientific methods. An ambitious new multiyear project AGORA aims to understand and resolve such inconsistencies. |
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