April 7, 2021 updates Posted on April 7, 2021 by Doug Loss A search for a fifth planet around HR 8799 using the star-hopping RDI technique at VLT/SPHERE https://www.aanda.org/articles/aa/full_html/2021/04/aa38794-20/aa38794-20.html Wide-orbit exoplanets are common. Analysis of nearly 20 years of OGLE microlensing survey data https://arxiv.org/abs/2104.02079 OGLE-2018-BLG-1185b : A Low-Mass Microlensing Planet Orbiting a Low-Mass Dwarf https://arxiv.org/abs/2104.02157 Significant improvement in planetary system simulations from statistical averaging https://arxiv.org/abs/2104.02179 Large density deficit of Earth’s core revealed by a multi-megabar primary pressure scale https://arxiv.org/abs/2104.02076