Plumes from Enceladus may host high molecular weight organic materials. An orbital plume sampling mission to Enceladus would require fine orbit and attitude control to compensate for the instability of the polar orbit, if low relative velocities are required in order to preserve biomarkers of interest. On Neuromorphic Architectures for Efficient, Robust and Adaptable Autonomy in Life Detection ...

Time series observations at UV (Extreme Ultraviolet Imaging Telescope/Solar and Heliospheric Observatory) and X-ray (Soft X-Ray Telescope/Yohkoh) wavelengths reveal properties of the global solar corona that are not easily identiÐed in a single image. A median-Ðltering technique that rejects features varying with time is used to isolate background corona. The coronal hole boundaries, polar plum...

We present stereoscopic reconstructions of the location and inclination of polar plumes of two data sets based on the two simultaneously recorded images taken by the EUVI telescopes in the SECCHI instrument package onboard the STEREO (Solar TErrestrial RElations Observatory) spacecraft. The ten plumes investigated show a superradial expansion in the coronal hole in 3D which is consistent with t...

A theoretical model of a volcanic plume, based on applying the equations of motion in a plume-centered coordinate system, suggests that the interaction between a volcanic plume and wind causes enhanced entrainment of air and horizontal momentum, plume bending, and a decrease in plume rise height at constant eruption rate. Because of rapid dilution in the high windspeeds of the polar jet, plumes...

Wind is the main external force that governs spreading of river plumes in sea. Many previous studies demonstrated direction (especially small plumes) generally coincides with wind direction. At same time, majority are strongly affected by Coriolis force, which also among baseline knowledge about plumes. In this study, we focus on deflection from induced received little attention before. For pur...