Uranus Rings



#1: Sound of star’s vibration reveals details of its core

Newscientist has reported that the astronomers this week have made the most detailed observation yet of the subtle vibrations of a Sun-like star. And this reveals details of the star’s interior that cannot be studied any other way.



As churning gas in their outer layers creates low-frequency sound waves that rebound inside them, the stars pulsate slightly. It is the frequency of each wave that reveals the speed at which sound travels through a star’s inner layers, shedding light on its density, temperature, composition and rotation.



#2: Satellite launch to boost DTH in India

The successful launch of India’s heaviest satellite, INSAT-4A, from spaceport of Kourou in French Guyana has been reported by physorg. It not only boosted the country’s space research efforts to yet another level, but it has also lifted the spirits of at least three Direct-To-Home televisions broadcasters.



#3: Astronomers Capture Rare Lunar Meteor Strike

Yet, another achievement by NASA this week — its astronomers witnessed a small but powerful meteor strike on the surface of the moon. After this phenomenon, does it seem the future lunar explorers are safe? It was only in 1999 that scientists first recorded a lunar strike as it happened. As NASA plans to return to the moon, its an urgent need for the agency to understand what happens after lunar impacts in order to protect lunar explorers.



#4: Quantum Superfluid Could Be Akin To Exotic Matter Found In Quark Star

Science Daily comments that, in the bizarre and rule-bound world of quantum physics, every tiny spec of matter has something called “spin” - an intrinsic trait like eye color - that cannot be changed and which dictates, very specifically, what other bits of matter the spec can share quantum space with.



#5: Flashes from the Past: Echoes from Ancient Supernovae

Harvard-Smithsonian Center for Astrophysics, jointly with the National Optical Astronomy Observatory released a report that informs, a team of astronomers has found faint visible echoes of three ancient supernovae by detecting their centuries-old light as it is reflected by clouds of interstellar gas hundreds of light-years removed from the original explosions.



#6: Scientists discover two more rings around Uranus

The Orlando Sentinel reports that astronomers have claimed to have spied two more rings encircling Uranus. It is the first such discovery since the Voyager 2 spacecraft flew past the planet nearly two decades ago.