How long have humans continuously lived in space?

The answer

On November 2, 2025, the International Space Station celebrated 25 years of continuous human presence - a quarter century with at least two people living and working in orbit at all times. Since Expedition 1 arrived on November 2, 2000, more than 280 people from 23 countries have called the ISS home. The station has hosted over 3,300 scientific experiments, orbited Earth more than 146,000 times, and traveled over 3.8 billion kilometers. Despite plans for decommissioning around 2030, the ISS remains the most expensive object ever built (approximately $150 billion) and humanity's longest-running experiment in living off-planet.