Friday, October 25, 2013

ScienceDaily: Astronomy News

ScienceDaily: Astronomy News

Scientists solve mystery of odd patterns of oxygen in solar system's earliest rocks

Posted: 24 Oct 2013 11:33 AM PDT

By re-creating conditions in the solar nebula, the swirl of gas that coalesced to form our star, the planets and the remnant rocky debris that circles the Sun as asteroids, the researchers demonstrated that a simple chemical reaction, governed by known physical principles, can generate silicate dust with oxygen anomalies that match those found in the oldest rocks in the solar system.

Ghostly shape of 'coldest place in the universe' revealed

Posted: 24 Oct 2013 11:31 AM PDT

Astronomers have taken a new look at the Boomerang Nebula, the so-called "coldest place in the Universe" to learn more about its frigid properties and determine its true shape, which has an eerily ghost-like appearance.

Just two weeks in orbit causes changes in eyes

Posted: 24 Oct 2013 09:11 AM PDT

Just 13 days in space may be enough to cause profound changes in eye structure and gene expression, report researchers. This study is the first to examine eye-related gene expression and cell behavior after spaceflight.

Unique chemical composition surrounding supermassive black holes

Posted: 24 Oct 2013 06:00 AM PDT

Astronomers have captured a detailed image of high density molecular gas around an active galactic nucleus harboring a supermassive black hole. The observations at the highest ever achieved reveal a unique chemical composition characterized by enhancement of hydrogen cyanide (HCN) around the black hole. An research team thought a high temperature affected by the black hole caused this peculiar chemical properties. The team expect that this unique chemical properties can be used to find black holes hidden behind dust.
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