A study published today in Nature Astronomy , in which a researcher from the IAC has participated, outlines the discovery of an extremely rare type of binary system composed of two high mass white dwarfs. The two stars are so close together that they will eventually collide resulting in a supernova explosion which, due to its proximity to the Earth, will appear ten times brighter than the Moon. Type 1a supernovae are a class of cosmic explosion often used as "standard candles" to measure the expansion of the Universe. They occur when a white dwarf exceeds the Chandrasekhar mass - the limit

The Solar System research group at the Instituto de Astrofísica de Canarias (IAC) is participating in the international programme to keep a closet track of asteroid 2024 YR4. The aim is to determine its orbit with the highest possible precision before it stops being observable by ground based and satellite telescopes in April, and so improving our value of the probability that it will impact the Earth in 2032. In this context several telescopes of the Canary Observatories of the IAC are playing an outstanding role in this observing campaign: The Gran Telescopio Canarias (GTC) at the Roque de

The Instituto de Astrofísica de Canarias is designing and developing, as ordered by the Spanish company Thales Alenia Space , the adaptive optics which will be a parto f the ground station for the GARBO project, the first Spanish geostationary system for distributing quantum keys by satellite. This is a decisive step in the field of secure quantum communication on a large scale, and will strengthn the position of Spain, and of Europe at the Forefront of this technology. Within the framework of the project the IAC will lead the development of the adaptive optics systems, and will participate