The small fraction of dark matter in the galaxy NGC1052-DF4 has worried the astronomical community for several years. Now a team of researchers from the Instituto de Astrofísica de Canarias (IAAC) the University of La Laguna (ULL) the University of New South Wales, the Insituto de Astrofísica de Andalucia, and NASA’S Ames Research Center have found a mechnism which can esplain it. This finding, which is to be published in the scientific journal The Astrophysical Journal, manages to make this phenomenon fit with accepted models of formation and evolution of galaxies.

DRAGO, the infrared camera developed by the team at IACTEC-Space of the Instituto de Astrofísica de Canarias, has seen its “first light”. The instrument, placed in orbit in January from Cape Canaveral is in its commissioning phase. The images taken show the mouth of the rio Meghna in the Ganges delta, the largest delta in the world. Even though it is a preliminary test, the quality of the results is well above expectation and show what DRAGO will be able to do once it is fully operational. On January 24th 2021 the infrared camera DRAGO (Demonstrator for Remote Analysis of Ground Observations

A recent study analyses data collect4d at 44 of the darkest places in the world, including the Canary Island Observatories, to develop the first complete reference method to measure the natural brightness of the night sky using low-cost photometers. Of the 44 photometers in the survey, the Roque de los Muchachos Observatory (Garafía, La Palma, Canary Islands) stands out at the darkest of all the skies analysed. The night sky is not completely dark; even in the remotest places there is a glow in the sky produced by natural components, both terrestrial and extraterrestrial, and by artificial