Distributed Acoustic Sensing (DAS) has emerged as a versatile tool for seismic and geophysical studies due to its unprecedented sensor density, converting regular telecommunication fibers into distributed 1D strain sensors. DAS can achieve m-level spatial resolution and kHz sampling rates, enabling direct measurement of the coherent wavefield from seismic events. ...
The Moon is entering a new era of exploration, with dozens of commercial, national, and international missions planned for the coming decade. Supporting this activity will require robust Positioning, Navigation, and Timing (PNT) infrastructure - a "Lunar GPS" - capable of serving spacecraft, landers, and rovers across the cislunar domain. ...
