Final kiss of two stars heading for catastrophe

Final kiss of two stars heading for catastrophe

Using ESO’s Very Large Telescope (VLT), an international team of astronomers has found the hottest and most massive double star with components so close that they touch each other. The two stars in the extreme system VFTS 352 could be heading for a dramatic end, during which the two stars either coalesce to create a …



Young stars’ flickering light reveals remarkable link with matter-eating black holes

Young stars’ flickering light reveals remarkable link with matter-eating black holes

An international team of astronomers, including Dr Simon Vaughan from the University of Leicester’s Department of Physics and Astronomy, has discovered a previously unknown link between the way young stars grow and the way black holes and other exotic space objects feed from their surroundings. The study, ‘Accretion-induced variability links young stellar objects, white dwarfs, …



The golden anniversary of black-hole singularity

The golden anniversary of black-hole singularity

When a star collapses forming a black hole, a space-time singularity is created wherein the laws of Physics no longer work. In 1965 Sir Roger Penrose presented a theorem where he associated that singularity with so-called ”trapped surfaces” that shrink over time. That hypothesis -one of the results of the general theory of relativity- is …