How can planets be heavier than the disks that formed them?
Planets form from protoplanetary disks. How they can be heavier on average than the disks is questioning our theories of planet formation.
Can we predict if planets are lonely?
Can the properties of a known planet system predict if that system has additional undetected planets?
Discovery of water ice in the shadows of Ceres
How does water ice survive on Ceres when it has no atmosphere? Find out in today’s astrobite.
A very close planet that is way out of line
Transiting exoplanets generally orbit in the same plane, so how is this planet so misaligned in this multi-planet system?
Predicting the number of planets from TESS
NASA’s TESS spacecraft has launched! Today’s paper predicts how many exoplanets it will find.