New Horizons Unveils Pluto's 1,000-km Icy Heart, Rewriting Distant-World Science
NASA's New Horizons completed a nine-year, 3-billion-mile voyage to Pluto, flyby in 2015 revealed a 1,000-km heart-shaped glacier of frozen nitrogen and a landscape so young it challenged prior models; now 5.7 billion miles away, the probe is in hibernation awaiting NASA's funding decisions, with data still trickling back and potential wake-up in 2026 if approved.