The Instituto de Astrofísica de Canarias (IAC) is joining the Earth Hour, a global movement that, once a year, reminds us that nature is the planet’s life support and highlights the environmental emergency that requires collective action.

The third telescope of the Two-metre Twin Telescope (TTT3) situated in the Teide Observatory of the Instituto de Astrofísica de Canarias (IAC) has seen its “first light”. This robotic 2 meter telescope, managed by the Canary company Light Bridges, is one of the largest of its kind in the world.

The single star nearest to the Sun is called Barnard’s star. A team of researchers led by the Instituto de Astrofísica de Canarias (IAC), has recently detected a ‘sub-Earth’ orbiting it. This exoplanet, called Barnard b has at least half the mass of Venus and orbits rapidly around its star, so that its year lasts only a little over three Earth days. This new exoplanet is sixteen times nearer to Barnard’d star than Mercury is to the Sun, and has a surface temperature close to 125oC, so it does not have liquid water on its surface. This discovery, led by the IAC in collaboration with a number