兩行星共享軌道嗎
Can two planets share the same orbit? Theory says yes, but little evidence has been found until now.
Using ALMA Observatory , in which ESO is a partner, astronomers have found the possible "sibling" of a planet orbiting a distant star 🪐🪐
The star in question is PDS 70, a young star hosting two planets: PDS 70b and PDS 70c. Astronomers have detected a cloud of debris that might be sharing the orbit of PDS 70b and which, they believe, could be the building blocks of a new planet or the remnants of one already formed. If confirmed, this would be the strongest evidence yet that two exoplanets can share one orbit
Imagine having two worlds that share the duration of the year and the habitability conditions.
To fully confirm their detection, the team will need to wait until after 2026, when they will aim to use ALMA 📡 to see if both PDS 70b and its sibling cloud of debris move along their orbit together.
https://www.eso.org/public/news/e