feb 222013
 
Distribution of Binaries in Young Star Cluster Explained

  Gravity remains the dominant force on large astronomical scales, but when it comes to stars in young star clusters the dynamics in these crowded environments cannot be simply explained by the pull of gravity. NGC 1818 is a very young globular cluster located in the Large Magellanic Cloud. Based on the populations of the different spectral classes [continue reading]

jan 252013
 
Red Explosions Reveal Secret Life of Binary Stars

  A University of Alberta professor has revealed the workings of a celestial event involving binary stars that produce an explosion so powerful its luminosity ranks close to that of a supernova, an exploding star. Hubble space telescope images show an expanding burst of light from the red supergiant star V838 Mon. Image Credit: NASA/ESA Theoretical [continue reading]

aug 292012
 
Found: Two Planets Orbiting Around Two Suns

  A team of astronomers has found the first transiting circumbinary multi-planet system: two planets orbiting around a pair of stars. This discovery shows that planetary systems can form and survive even in the chaotic environment around a binary star. And that such planets can exist in the habitable zone of their stars. The results [continue reading]

jul 302012
 
Double Stars Mysterious Connection

  Charged objects like protons and electrons are connected by electromagnetism.  Massive objects like planets and our Sun are connected by gravity.  From falling balls to an electric shock, gravity and electromagnetism are the forces we experience daily. Double stars are sometimes very special.  These double stars are more massive than our Sun and can [continue reading]

jul 272012
 
The Brightest Stars Have a Close Companion

A new study using the European Southern Observatory’s (ESO) Very Large Telescope (VLT) has shown that most very bright high-mass stars, which drive the evolution of galaxies, do not live alone. Almost three-quarters of these stars are found to have a close companion star, far more than previously thought. Surprisingly most of these pairs are [continue reading]

jul 052012
 
'Impossible' Binary Stars Discovered

  A team of astronomers have used the United Kingdom Infrared Telescope (UKIRT) on Hawaii to discover four pairs of stars that orbit each other in less than 4 hours. Until now it was thought that such close-in binary stars could not exist. The new discoveries come from the telescope’s Wide Field Camera (WFCAM) Transit [continue reading]