The video tutorial explains a scientific project involving drilling into a glacier to access a subglacial lake. The glacier is described as being 3.2 kilometers thick, 160 meters deep, 14 kilometers long, and 3 kilometers wide. A sterilized hot water drill is used to penetrate the glacier to a depth of 300 meters, creating a cavity below the hydrological water level. A second drill creates a 3.5-kilometer deep borehole to the lake's surface. The operation, expected to take three to four days, aims to collect samples in 24 titanium canisters. The team has 24 hours to retrieve samples before the borehole refreezes.

How many titanium canisters will be filled with lake water and sediment?

What is the time frame for retrieving samples after drilling is completed?