The four large sized telescopes of the CTAO on La Palma reach a key milestone in their construction The LST-2 telescope has successfully completed the installation of its camera support structure (CSS), making it the last of the four Large Sized Telescopes ( LST ) to reach this important milestone in its construction at the Roque de los Muchachos Observatory of the Instituto de Astrofísica de Canarias (IAC) on La Palma. This telescope is part of the ambitious CTAO ( Cherenkov Telescope Array Observatory ) project, which will create the world's largest network of telescopes for the detection

Ultra-faint dwarf galaxies, among the tiniest and faintest galaxies known, may hold the key to understanding one of the Universe’s biggest mysteries: the true nature of dark matter. A new study reveals that even a single collision between dark matter particles every 10 billion years — roughly the age of the Universe — is enough to explain the dark matter cores observed in these small systems. These galaxies, which contain only a few thousand stars, are dominated by dark matter and have relatively simple evolutionary histories. That makes them ideal cosmic laboratories for testing theories