If we know a star’s rotation we can calculate its age. But what happens if this rotation is affected by a nearby massive planet? And how much will this change our age estimate?
We aren’t the only ones with gassy problems…why don’t sub-Saturns accrete enough gas to become full-blown Saturns or Jupiters?
We think we know how planets form, but what about planets that seem to have formed very fast? ‘Oumuamua-like objects may be the missing link.
Radiation from massive stars can melt away protoplanetary disks. What can the leftover disks tell us about the environment from which they formed?
The sites of planet formation seem to be anything but orderly and a recent discovery may help explain the observed wide variety of exoplanet configurations.
High resolution images from New Horizons of the surfaces of Pluto and Charon show ancient craters, but fewer than astronomers expected.