](https://www.universetoday.com/article_images/lisadang-suncloudsv1-web.x78a95895_20261027_133719.jpg)
Exoplanets extremely close to their stars are expected to have lost their atmospheres. But one of them, TOI-561 b, seems to have a thick atmosphere. Understanding how this super-Earth has an atmosphere is challenging.
](https://www.universetoday.com/article_images/lisadang-suncloudsv1-web.x78a95895_20261027_133719.jpg)
Exoplanets extremely close to their stars are expected to have lost their atmospheres. But one of them, TOI-561 b, seems to have a thick atmosphere. Understanding how this super-Earth has an atmosphere is challenging.