Psychology of Deep Space and Alien Intrigue This realism is enhanced by the unforced drama and psychology of being on board a long-duration mission into deep space. The feeling of loss and depression when a crew member dies; the agony of not being able to communicate with loved ones back on Earth in real time; the need for constant health evaluations; the boredom of pre-packaged food; the loneliness of having communications severed from Earth - all these factors make the viewer bond with the crew.
The casting is also excellent, as is the script: there's no pointless drama between the crew members and it doesn't needlessly degenerate into a monster flick half way through (i.e. "Sunshine"). Also, Cordero is careful to build suspense once the crew make the thrilling descent and landing onto Europa to investigate its mysterious landscape.
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Footage from the drill submersible is also sublime. To access the extensive mass of liquid water below the landed capsule, the crew deploy a submersible probe that doubles up as a drill bit. After drilling through over 2,000 meters of ice, the harnessed probe drops into the body of liquid water. The camera pans around the sub-surface ocean and the crew, from within the safety of their landed capsule, listen to the noises of the mysterious marine environment. Marine biologist Katya Petrovna (played by Karolina Wydra) remarks, "We're so far from home ... it's like looking at Lake Vostok right now," while the scientists try to decipher the shapes in the ice crust. Is it caused by eroding thermal currents? Or are the shapes formed by microbes? For now, they're not sure, but constant measurements are taken, depicting the realism of scientists on the cutting edge of extraterrestrial discovery.