M. A. Janssen

TL;DR: The most recent Cassini RADAR images of Titan show widespread regions that appear to be seas of longitudinal dunes similar to those seen in the Namib desert on Earth, and the distribution and orientation of the dunes support a model of fluctuating surface winds.

TL;DR: The Cassini Titan Radar Mapper imaged about 1% of Titan's surface at a resolution of ∼0.5 kilometer, and larger areas of the globe in lower resolution modes, revealing a complex surface, with areas of low relief and a variety of geologic features suggestive of dome-like volcanic constructs, flows, and sinuous channels.

TL;DR: In this article, a large number of longitudinal dunes have been discovered by the Titan Radar Mapper on the surface of Titan and they are found mainly within ±30° of the equator in optically-, near-infrared-, and radar-dark regions, indicating a strong proportion of organics.

TL;DR: The Cassini-RADAR is a multimode 13.8 GHz multiple-beam sensor that can operate as a synthetic-aperture radar (SAR) imager, altimeter, scatterometer, and radiometer as discussed by the authors.

TL;DR: The MIRO (Microwave Instrument for the Rosetta Orbiter) as mentioned in this paper was used to study the evolution of outgassing water and other molecules from the target comet as a function of heliocentric distance.