Moon dust. Great depth

"Moon Dust" Near future. There are already settlements on the Moon and even... "Office of Lunar Tourism"! There is no end to clients, but during an excursion along the Sea of ​​Thirst, the Selena dust rover ends up buried under... a multi-meter layer of lunar dust... And an amazing, unique operation to rescue tourists and crew begins. The fantastic and at the same time almost real story of human courage and ingenuity has been attracting more and more readers for more than half a century. "Great depth." As a result of an accident, astronaut Walter Franklin is forced to leave his job forever and go to Earth. A new profession that he is mastering is a junior caretaker of a whale sanctuary, or, simply, a shepherd of a herd of whales. The ocean is like space: thousands of secrets are hidden in its depths, and the engineering problems facing humanity in its development are no less complex than the tasks of celestial navigation, piloting and docking...