Our solar system may contain a massive celestial body we know close to nothing about, astronomers say. They explain that the presence of such an object would go a long way towards explaining the large number of comets being driven from the Oort Cloud towards the Sun.This space body may be a very large planet, a team ... |
15 February 2011
06:41 GMT |
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A new gas giant exoplanet roughly the size of Jupiter orbiting around a star similar to our Sun has been found by the CoRoT space telescope operated by the European Space Agency. The planet, dubbed CoRoT-Exo-4b, was discovered through a transit method, appears to complete an orbit around its star in about 9.2 days an... |
25 July 2008
10:43 GMT |
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Brown dwarf stars are the coldest class of failed stars in the universe, some of which weighing as little as 3 percent of the mass of the Sun, insufficient to start nuclear fusion reactions in their core, thus being unable to generate their own internal energy. Just like with gas giants, observations regarding the ma... |
3 June 2008
04:18 GMT |
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Only a few decades ago, astronomers weren't even sure if other solar systems aside ours exist in the universe. Since then, a couple of hundreds of solar systems have been discovered, mostly composed of gas giants. When trying to learn about other solar systems, astronomers often make analogies to our own. If our... |
10 May 2008
07:02 GMT |
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Very little is known about how high-temperature gas in a condensed state - such as the one inside giants like Jupiter, Saturn or other gas giant exoplanets in the galaxy - behaves. In order to get a better understanding of the evolution of gases in these exact thermodynamic conditions, a collaboration between the Lab... |
29 April 2008
05:59 GMT |
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Brown dwarfs, or failed stars, are stellar bodies with masses 10 to 70 times higher than Jupiter's. Although, like all stars, they have the capability of initiating thermonuclear fusion reactions in their cores, their masses do not permit them to sustain these reactions for a very long time, unlike typical stars... |
11 April 2008
02:53 GMT |
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The star system we talk about is located around a well-studied star known as AB Aurigae. The star is relatively young and surrounded by a disk of material created from a gas and dust cloud that seems to be forming some kind of object inside it, like the gas giant of a brown dwarf star. Co-author of the study, Ben R. ... |
27 March 2008
05:06 GMT |
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Another exo-planet found and yet another intriguing discovery! Astronomers reveal that an exo-planet detected back in 2005, located in a solar system in the Vulpecula constellation, 63 light-years away from Earth, has a methane-rich atmosphere. The planet dubbed HD 189733b is a gas giant relatively similar to Jupiter... |
20 March 2008
03:44 GMT |
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