Deep Impact (1998)

Apollo 13


Concept 1: After the power to the space shuttle has been turned off, the cabin temperature begins to drop. At this point, an astronaut's exhaled breath is visible and rises to the top of the shuttle. However, breath can only rise when gravity is present. Breath consists of water vapor that becomes visible when the temperature is cold. The breath rises because it is lighter than the air that surrounds it. Space is a weightless environment, therefore the astronaut's breath should have travelled in a straight path instead of rising.

Visible Breath

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Ann Haley MacKenzie
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