Scientists have discovered a new ring system around a dwarf planet on the edge of the Solar System. The ring system orbits much further out than is typical for other ring systems, calling into question current theories of how ring systems are formed. The discovery, published in Nature, was made possible thanks to the HiPERCAM instrument on the Gran Telescopio Canarias (GTC) at the Roque de los Muchachos Observatory in La Palma. A system of rings has been discovered around the dwarf planet Quaoar which is approximately half the size of Pluto and orbits the Sun beyond Neptune. The discovery

20,000 observations from the Calar Alto telescope in Spain are made public, and have led to the discovery of 59 planets, some of them potentially habitable. The study, led by a consortium of Spanish and German institutions, has the prominent participation of the Instituto de Astrofísica de Canarias (IAC) and it is is published in the journal Astronomy & Astrophysics. The CARMENES project has just published data from about 20,000 observations taken between 2016 and 2020 for a sample of 362 nearby cool stars. The project, which is financed with Spanish and German funds, uses the CARMENES