Marsquakes reveal the Red Planet boasts a liquid core half its diameter

Astronomers make first clear detection of a moon-forming disc around an exoplanet. Astronomers have unambiguously detected the presence of a disk around a planet outside our Solar System for the first time. The observations will shed new light on how moons and planets form in young stellar systems.

First Clear Detection of a Moon-Forming Disc Around a Planet Outside Our Solar System

Europe's Mars orbiter finds no trace of methane on Red Planet