apr 052013
 
Farthest Type Ia Supernova So Far Discovered

  NASA’s Hubble Space Telescope has found the farthest supernova so far of the type used to measure cosmic distances. Supernova UDS10Wil, nicknamed SN Wilson after American President Woodrow Wilson, exploded more than 10 billion years ago. This is a Hubble Space Telescope view of supernova SN UDS10Wil, nicknamed SN Wilson that exploded over 10 [continue reading]

mrt 212013
 
An Almost Perfect Universe Revealed by Planck

  Acquired by ESA’s Planck space telescope, the most detailed map ever created of the cosmic microwave background – the relic radiation from the Big Bang – was released today revealing the existence of features that challenge the foundations of our current understanding of the Universe. The anisotropies of the cosmic microwave background (CMB) as [continue reading]

mrt 092013
 
The Universe Accurately Measured

  New results pin down the distance to the galaxy next door   After nearly a decade of careful observations an international team of astronomers has measured the distance to our neighbouring galaxy, the Large Magellanic Cloud, more accurately than ever before. This new measurement also improves our knowledge of the rate of expansion of [continue reading]

feb 012013
 
The Lack of Dwarf Galaxies Explained

  Astronomers of the international CLUES collaboration have identified “Cosmic Web Stripping” as a new way of explaining the famous missing dwarf problem: the lack of observed dwarf galaxies compared with that predicted by the theory of Cold Dark Matter and Dark Energy. Cosmic Web Stripping, Visualization. Image Credit: Alejandro Benitez Llambay High-precision observations over [continue reading]

nov 202012
 
Most Peculiar Supernovae Explained by Failed Explosions

  Supercomputer simulations have revealed that a type of oddly dim, exploding star is probably a class of duds—one that could nonetheless throw new light on the mysterious nature of dark energy. A collaboration led by George Jordan at the University of Chicago’s Flash Center for Computational Science has conclusively demonstrated a connection between white [continue reading]

nov 132012
 
Quasars Unveil New Era in the Expansion History of the Universe

  BOSS, the Baryon Oscillation Spectroscopic Survey, is mapping a huge volume of space to measure the role of dark energy in the evolution of the Universe. BOSS is the largest program of the third Sloan Digital Sky Survey (SDSS-III) and has just announced the first major result of a new mapping technique, based on [continue reading]