How Pluto walks a tightrope between a stable and chaotic orbit

Researchers Think They've Cracked The Secret Behind Pluto's Weirdly Unstable Orbit

Second alien world detected in the planetary system HD 83443 - The newfound extrasolar world is a Jupiter-mass planet orbiting its host on a highly eccentric 22-year orbit

To infinity and beyond: New Space Force unit to monitor 'xGEO' beyond Earth's orbit