Most of the craters on the surface of the Moon were created by the collision of minor bodies of the Solar System, in particular asteroids coming from the Main Belt as a consequence of different types of resonance. Our aim is to investigate the dynamics of such asteroids, paying special attention on the hyperbolic invariant manifolds associated with the equilibrium point L2 of the Earth – Moon s...

This research used knowledge of the indigenous practice of timing nontimber forest product harvest with the full moon to demonstrate that chemicals controlling the decomposition rate of foliage fluctuate with the lunar cycle and may have developed as a result of plant-herbivore interactions. Indigenous knowledge suggests that leaves harvested during the full moon are more durable. Palm leaves h...

Distant Retrograde Orbits in the Earth-Moon system are gaining in popularity as stable ‘parking’ orbits for various conceptual missions. To investigate the stability of potential Distant Retrograde Orbits, simulations were executed, with propagation running over a thirty-year period. Initial conditions for the vehicle state were limited such that the position and velocity vectors were in the Ea...

Mother Nature is an exceedingly exacting old lady. She guards her treasures well and does not yield them on casual inquiry. To be sure, she has spread the stuff and substance of the Universe before everyone so that it might be described and classified. For generations men have eagerly approached this monumental job until at last there is available a fairly satisfactory account of the structure ...