At the end of 2019, we announced the launch of a new publication in the American Astronomical Society’s journal family: The Planetary Science Journal (PSJ), a peer-reviewed journal that covers “all aspects of investigation of the solar system and other planetary systems.”
Now, PSJ has officially published its first issue. Read on for a look at the first articles included, and follow the links to the full open-access articles if you’d like to learn more!
Diagram of the fragmented lunar crust. [Richardson & Abramov 2020]
Origin of a Battered Lunar Layer
The surface of the Moon has been constantly bombarded by small, rocky bodies over its lifetime, fracturing its crust down to depths of perhaps 20 km. Planetary Science Institute scientists James Richardson and Oleg Abramov have now modeled this process to better understand how the upper megaregolith — the battered layer of lunar dirt 1–3 km deep that lies just below the Moon’s surface — formed.
“Modeling the Formation of the Lunar Upper Megaregolith Layer,” James E. Richardson and Oleg Abramov 2020 Planet. Sci. J 1 2. doi:10.3847/PSJ/ab7235
Will Asteroid Ejecta Arrive at Earth?
Schematic shows the planned impact of DART on Didymos B, while observatories on Earth watch. ...