Optical image of the galaxy M106 superimposed on the image of material emissions in the galaxy (orange) taken by the Low-Frequency Array radio telescope (LOFAR), February 19, 2019. Photo: AFP
European giant radio telescope LOFAR has discovered stars born in tens of thousands of distant galaxies with unprecedented precision, in a series of studies released Wednesday.
Using techniques that correspond to very long exposures and with a field of view approximately 300 times larger than a full moon, scientists have been able to distinguish galaxies like the Milky Way deep in the ancient universe.
“The light of these galaxies travels billions of years to reach Earth; that means we see galaxies as they were billions of years ago, when they formed most of their stars,” said Philip Best of Britain. The University of Edinburgh, which conducted a detailed study of the telescope in a press release.
The LOFAR telescope combines signals from a vast network of more than 70,000 individual antennas in countries from Ireland to Poland, connected by a high-speed optical network. They are able to observe very weak and low-energy light, invisible to the human eye, created by ultra-energy particles that travel close to the speed of light.