"Pluto is showing us a diversity of landforms and complexity of processes that rival anything we've seen in the solar system." As the craft continues to transmit photos back to Earth, scientists ...

NASA has given a new lease of life to its New Horizons mission, which in 2015 got the first-ever close-ups images of dwarf planet Pluto ... its solar wind at the very edges of our solar system.

So some astronomers reasoned that at least one large, undiscovered world at the edge of the solar system ... to the Pluto encounter will be punctuated with tense analyses of the newest images ...