The case of the over-tilting exoplanets

For almost a decade, astronomers have tried to explain why so many pairs of planets outside our solar system have an odd configuration -- their orbits seem to have been pushed apart by a powerful unknown mechanism. Researchers say they've found a possible answer, and it implies that the planets' poles are majorly tilted.

from All Top News -- ScienceDaily https://www.sciencedaily.com/releases/2019/03/190304121557.htm