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Astronomers publish new sky map detecting hundreds of thousands of previously unknown galaxies

Published on 19. Februar 2019
Durch LOFAR haben die Forschenden herausgefunden, dass der Galaxienhaufen Abell 1314 durch die Verschmelzung mit einem anderen Haufen entstanden ist. Abell 1314 ist 460 Millionen Lichtjahre von der Erde entfernt. Bild: Amanda Wilber/LOFAR Surveys Team
An international team of more than 200 astronomers from 18 countries has published the first phase of a major new radio sky survey at unprecedented sensitivity using the Low Frequency Array (LOFAR) telescope. The survey reveals hundreds of thousands of previously undetected galaxies, shedding new light on many research areas including the physics of black holes and how clusters of galaxies evolve. A special issue of the scientific journal Astronomy & Astrophysics is dedicated to the first twenty-six research papers describing the survey and its first results.[Weiterlesen]
Posted by NLangohr in General
Tags: fo homepage

The Algae’s Third Eye

Published on 18. Februar 2019
Scientists at the Universities of Würzburg and Bielefeld in Germany have discovered an unusual new light sensor in green algae. The sensor triggers a reaction that is similar to one in the human eye.

Just like land plants, algae use sunlight as an energy source. Many green algae actively move in the water; they can swim to the light or move away from it. For light perception they use special sensors (photoreceptors).[Weiterlesen]
Posted by NLangohr in General
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