Paul GuinnessyGetting humans to #Mars is difficult enough. But things won’t be any easier after they arrive: The red planet’s climate and weather are anything but friendly. #atmosphericphysics #planetaryphysics
In 2012 NASA’s #GRAIL (Gravity Recovery and Interior Laboratory) mission mapped the gravity of the Moon and found something curious: Anomalously strong gravitational fields were surrounding a large, low region on the #Moon. The cause, sheet-like slabs of dense, titanium-rich material. #physics #planetaryphysics https://pubs.aip.org/physicstoday/online/43335