Enceladus is a target of future missions designed to search for existing life or its precursors. Recent flybys of Enceladus by the Cassini probe have confirmed the existence of a long-lived global ocean laced with organic compounds and biologically available nitrogen. This immediately suggests the possibility that life could have begun and may still exist on Enceladus. Here we will compare the ...

A time-domain Legendre spectral-element method is described for full-wave simulation of ocean acoustics models, i.e., coupled fluid-solid problems in unbounded or semi-infinite domains, taking into account shear wave propagation in the ocean bottom. The technique can accommodate range-dependent and depth-dependent wave speed and density, as well as steep ocean floor topography. For truncation o...

The study of samples with minerals the atacamite group from ore fields Atlantic Ocean made it possible to reveal their genetic features and hydrothermal nature. objects were observed help underwater television directly on ocean floor. lifted initially studied under binoculars aboard R/V Professor Logachev. Due characteristic rich bluish-green color, atacamites easily recognized among other mine...

[1] We develop a spectral inversion method for mass redistribution on the Earth’s surface given geodetic measurements of the solid Earth’s geometrical shape, using the elastic load Love numbers. First, spectral coefficients are geodetically estimated to some degree. Spatial inversion then finds the continental surface mass distribution that would force geographic variations in relative sea leve...