thecosmos

The Cosmos

2 Years ago
Exiled planet linked to stellar flyby 3 million years ago: Two binary star systems narrowly missed one another, but left behind a smoking gun

Exiled planet linked to stellar flyby 3 million years ago: Two binary star systems narrowly missed one another, but left behind a smoking gun

Paul Kalas of UC Berkeley was puzzled by the tilted but stable orbit of a planet around a binary star -- an orbit like that of our solar system's proposed Planet Nine. He calculated backwards in time to see if any of the 461 nearby stars ever came close enough to perturb the system. One star fit the bill. The stellar flyby 2-3 million years ago likely stabilized the planet's orbit, keeping it from flying away.

  • 0 Likes

  • 0 Comments