When NASA’s New Horizons mission flew past Pluto in 2015 ... of an impact — but few impact craters come in Sputnik Planitia's unique pear-like shape. How Sputnik Planitia formed remains ...

Pluto’s most recognizable feature is the giant, heart-shaped area in its southern ... struck at a 30-degree angle and created a bright, teardrop-shaped crater. Simulations show that the ...