/newsroom/taxonomy/term/15813/all en /newsroom/channels/news/astronomers-uncover-mysterious-origins-super-earths-328401 <p>Mini-Neptunes and super-Earths up to four times the size of our own are the most common exoplanets orbiting stars beyond our solar system. Until now, super-Earths were thought to be the rocky cores of mini-Neptunes whose gassy atmospheres were blown away. In a new study published in <a href="https://iopscience.iop.org/article/10.3847/1538-4357/abd6c7"><i>The Astrophysical Journal</i></a>, astronomers from ƽÌØÎå²»ÖÐ show that some of these exoplanets never had gaseous atmospheres to begin with, shedding new light on their mysterious origins.</p> Tue, 09 Feb 2021 20:44:23 +0000 shirley.cardenas@mcgill.ca 256608 at /newsroom