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#art #artstr Torsten Wolber

😂

You have seen them your whole life. Three stars, perfectly lined up, impossibly bright, sitting in the winter sky like someone placed them there on purpose. Orion's Belt is probably the first constellation feature most people ever learned to find. Almost every human culture on Earth named them, navigated by them, and built stories around them. What nobody tells you is what they actually are. What looks like three evenly matched points of light is actually three completely different stellar systems at different distances, different sizes, and different levels of violence, only appearing aligned from our particular vantage point in the galaxy. Mintaka, the westernmost star, is not one star but a sextuple system, at least six stars orbiting each other, around 1,200 light years away. Its combined luminosity is roughly 190,000 times that of the Sun. Alnitak, at the eastern end of the belt, is a triple star system about 1,260 light years from Earth. Its primary component is the brightest O-type star visible in the entire night sky, burning at nearly 30,000 Kelvin and outshining our Sun by around 250,000 times. Then there is Alnilam in the middle, the largest and most luminous of the three. A single blue supergiant, 40 times the mass of the Sun, with a radius more than 30 times larger, and a luminosity approaching 375,000 times solar. It is actively losing mass at a rate millions of times faster than our Sun, slowly tearing itself apart. Together, the ten individual stars inside these three systems have a combined luminosity of approximately one million times that of the Sun. All three will end as supernovae. Stars this massive do not fade. They detonate. Next time you spot those three familiar dots in the sky, just stop for a second. What you are actually looking at is ten colossal, dying stars spread across over a thousand light years of space, so far away that the light reaching your eyes tonight left before many human civilisations even existed. Three dots. One million suns.

Portugal ran its entire country on renewable energy for six consecutive days — wind did most of the heavy lifting. In November 2023, a powerful Atlantic weather system moved across the Iberian Peninsula and Portugal's wind farms collectively produced more electricity than the entire country consumed — for 144 consecutive hours. No fossil fuel backup. No emergency imports. Just wind, hydropower, and solar maintaining a modern European nation's full electricity demand for six straight days. Portugal's wind infrastructure is the reason this was possible. The country has invested consistently in wind since the 1990s, building turbine clusters along its Atlantic coastline and central ridgelines where prevailing westerlies blow with remarkable consistency. Today wind supplies nearly 27% of Portugal's annual electricity, with peaks regularly exceeding 100% of instantaneous demand. During the six-day run, Portugal actually exported surplus power to Spain and France — earning revenue from clean electricity while its neighbors burned gas. Grid operators managed the surplus through pumped hydro storage, using excess wind power to push water uphill into reservoirs and releasing it as needed when wind eased. Portugal has no oil reserves. No gas fields. No coal mines. What it has is 1,793 kilometers of Atlantic coastline and the political will to use it. Source: REN — Redes Energéticas Nacionais & Eurostat Energy Report, 2024

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