apr 072014
 
Anne's Image of the Day: Galaxy Cluster Abell 1689

  April 7, 2014 Abell 1689, a galaxy cluster in Virgo Image Credit: NASA, ESA, the Hubble Heritage Team (STScI/AURA), J. Blakeslee (NRC Herzberg Astrophysics Program, Dominion Astrophysical Observatory), and H. Ford (JHU) Abell 1689 is a galaxy cluster of some 2 million light-years across, located almost 2.5 billion light-years away in the constellation of [continue reading]

okt 262013
 
The Deepest Probe of the Universe Ever

  NASA’s Great Observatories are teaming up to look deeper into the Universe than ever before. With a boost from natural “zoom lenses” found in space, they should be able to uncover galaxies that are as much as 100 times fainter than what the Hubble, Spitzer, and Chandra space telescopes can typically see. Abell 2744 [continue reading]

sep 252013
 
The Densest Galaxy In the Nearby Universe Found

  The densest galaxy in the nearby Universe may have been found. Packed with an extraordinary number of stars, this unusual galaxy is providing astronomers with clues to its intriguing past and how it fits into the galactic evolutionary chain. This composite image shows M60 and the region around it, where data from NASAís Chandra [continue reading]

mei 262013
 
Galaxies Grow by Funnels of Cold Gas

  Computer simulations of galaxies growing over billions of years have revealed a likely scenario for how they feed: a cosmic version of swirly straws.  Created with the help of supercomputers, this still from a simulation shows the formation of a massive galaxy during the first 2 billion years of the Universe. Hydrogen gas is [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]

feb 222013
 
Remnant of Swallowed Galaxy Detected?

    Peering deep into the vast stellar halo that envelops our Milky Way galaxy, astronomers using NASA’s Hubble Space Telescope have uncovered tantalizing evidence for the possible existence of a shell of stars that are a relic of cannibalism by our Milky Way. This illustration shows the disk of our Milky Way galaxy surrounded [continue reading]