We saw the heart of Pluto 10 years ago—it’ll be a long wait to see the rest

A decade ago, the New Horizons spacecraft provided humanity with its first close-up look at Pluto, revealing its complex and dynamic nature. This historic flyby, which occurred on July 14, 2015, offered unprecedented views of Pluto's varied terrain, including its iconic heart-shaped feature, Sputnik Planitia. Despite the wealth of data gathered, much of Pluto remains unobserved in detail, and the prospect of a follow-up mission is distant.

The long wait for further exploration highlights the immense challenges and costs associated with deep-space missions, particularly to the outer solar system.