Using NASA’s Transiting Exoplanet Survey Satellite (TESS), astronomers have discovered two new young planetary systems. They found that two stars not older than 320 million years, namely TOI-251 and TOI-942, are orbited by a mini-Neptune planet and two Neptune-sized exoplanets. The finding is reported in a paper published November 26 on arXiv.org.
![](https://scx1.b-cdn.net/csz/news/tmb/2020/twoyoungplan.jpg)
Source:
https://phys.org/news/2020-12-young-planetary-tess.html