An international scientific team, including members of the Instituto de Astrofísica de Canarias (IAC), has launched an ambitious program to map exoplanets located around the Neptunian Desert —a region around stars where planets the size of Neptune are very rare— in order to better understand the mechanisms of planetary system evolution and formation. This scientific expedition has delivered its first results with the observation of the TOI-421 planetary system. Analysis of this system reveals a surprisingly inclined orbital architecture, offering new insights into the chaotic history of

The international BEARD project, led from the Instituto de Astrofísica de Canarias (IAC) and the University of La Laguna (ULL), has used data from several telescopes at the Roque de los Muchachos Observatory, and computer simulations to explain how galaxies similar to the Milky Way have managed to survive the most violent stages of the history of the Universe. The present model for the evolution of the universe predicts an epoch dominated by important mergers of galaxies some ten thousand million years ago. “It’s a case of violent interactions, in which it is foreseeable that weak structures

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