An international team of astronomers has published the most sensitive images of the Universe ever taken at low radio frequencies, using the International Low Frequency Array (LOFAR).
By observing the same regions of sky over and over again and combining the data to make a single very-long exposure image, the team has detected the faint radio glow of stars exploding as supernovae, in tens of thousands of galaxies out to the most distant parts of the Universe. A special issue of the scientific journal Astronomy & Astrophysics is dedicated to fourteen research papers describing these images and the first scientific results.
Read here the full article “Ultra-sensitive radio images reveal thousands of star-forming galaxies in early Universe” at the ASTRON webpage.
Image © Philip Best & Jose Sabater, University of Edinburgh.