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Thursday, March 28, 2013

A new theory on how to grow giant stars


Scientists have put forward a new theory of how can grow giant stars.

According to scientists, the young stars can grow to unusually large sizes, exceeding the size and mass of our sun 10 times. Such a huge and massive size of these stars can afford in the event that they are surrounded by a cocoon of old stars. These old stars and continually nurture its gas, like a powerful fuel, the young star that is in the process of its formation.

Selected new names for craters of Mercury


International Astronomical Union (International Astronomical Union, IAU) approved the names of the nine craters Mercury.

The choice of names was associated with the names of famous artists, writers, musicians, which is in accordance with the rules established for the geological structures IAU planet.

Wednesday, March 27, 2013

LRO observes mercury and hydrogen explosion in the spectrum probes GRAIL


When NASA's twin probes GRAIL mission scientists were deliberately destroyed, sent spacecraft into collision with the lunar surface in December, complex scientific instruments Orbiter Lunar Reconnaissance Orbiter (LRO) were in a good position to monitor the effects of this collision. In escaped after the explosion of a gas jet tool Lyman Alpha Mapping Project (LAMP), 

Astronomers have discovered a new type of supernova


Previously it was thought that supernova typically have one of two main scenarios. But a team of astronomers, including Wendy Friedman, Mark Phillips and Eric Persson of Carnegie, reported the discovery of a new type of supernova, called type 1ah.

Astronomers used to divide supernova into two main categories: type 1a supernova and supernova occurring core-collapse. Supernova, accompanied by collapse of the core,

Hubble digs glowing galactic worm


Picture of a charming dazzling galaxy, recognized as IRAS 23436 5257, it was Space Telescope, NASA / European Space Agency "Hubble." This galaxy is located in the northern constellation Cassiopeia, which was named in honor of the arrogant, conceited, but, nevertheless, a beautiful mythical queen.

Cyclones on the icy moon of Saturn - Titan


Astronomer studies the possibility of the origin of cyclones over the surface of the largest moon of Saturn - Titan, indicating some similarities to the weather with the Earth. Saturn's moon Titan, whose surface is so cold that methane falls on her in the form of rain in the summer raises its temperature so that makes it possible for cyclone zipping above the seas. Marine evaporation is able to generate enough energy to produce wind, moving at a speed of 70 kilometers per hour. However, the formation of cyclones totally depends on what is the chemical composition of the seas of Titan.

Tuesday, March 26, 2013

Constantly changing vortex over the south pole of Venus


As a new study shows, a huge cyclone formed over the south pole of Venus, is divided into parts, and then going back into one.

Observation of the planet for the past six years has allowed concluding that the "long-lived" storm is constantly evolving. This fact led to a greater number of issues related to the unusual weather conditions on the planet.

In 2006, when the spacecraft ESA "Venus Express (Venus Express, VEX) came to Venus (this was in April), then over the South Pole was seen resembling a cyclone structure,