1.4 billion appears to be the total cost: https://www.esa.int/ESA_Multimedia/Images/2023/05/Euclid_an_ESA-led_global_collaboration https://www.esa.int/ESA_Multi

1.4 billion appears to be the total cost: https://www.esa.int/ESA_Multimedia/Images/2023/05/Euclid_an_ESA-led_global_collaboration https://www.esa.int/ESA_Multimedia/Images/2023/05/Euclid_an_... Budget back in 2012 was 600 million: https://cerncourier.com/a/euclid-to-link-the-largest-and-smallest-scales/ https://cerncourier.com/a/euclid-to-link-the-largest-and-sma... I don't know how badly inflation hits these projects, but that's around 820 million in today's money, which means roughly 580 million over budget. And I've no doubt that 600 million was only floated around in the first place to satisfy a bureaucratic manager who imagines that putting a number next to everything makes things efficient.