Christoph Keller

1. Direct Imaging Discovery of Giant Exoplanet β Pictoris d: A Decade-long Game of Hide-and-seek
   2026/06/22 by Ben J. Sutlieff, Markus J. Bonse, Valentin Christiaens +94 · 4 voices
   Physics and Astronomy · #Adaptive optics and wavefront sensing #Astronomy and Astrophysical Research #Direct imaging #Exoplanet #Luminosity #Orbit (dynamics) #Orbital elements #Orbital inclination #Planet #Spectrograph #Stellar, planetary, and galactic studies #Very Large Telescope
2. Planet-wide, Concentric Density Waves in Venus’s Upper Atmosphere Revealed through Polarimetry?
   2026/07/01 by Gourav Mahapatra, M. Rodenhuis, Michiel Rodenhuis +6 · 1 voice
   Physics and Astronomy · #Astro and Planetary Science #Atmosphere (unit) #Atmosphere of Venus #Flux (metallurgy) #Planetary Science and Exploration #Polarimeter #Polarimetry #Polarization (electrochemistry) #Radiative transfer #Space Science and Extraterrestrial Life #Venus