New images from the New Horizons spacecraft's close encounter with Pluto this week show the dwarf planet emerging in wonderfully perplexing detail.

“I’m still having to remind myself to take deep breaths,” Jeff Moore of NASA’s Ames Research Center said Friday, when NASA released several new pictures from Tuesday's Pluto flyby. "This landscape is just astoundingly amazing.”

One new image shows a curiously young terrain marked by smooth, icy plains that’s north of a spiky mountain range revealed earlier in the week. Another piece of data shows an unexplained clump of carbon monoxide ice clustered over the left ventricle of the smooth, heart-shaped patch on Pluto’s face.