In Oct $2022,$ a chilling discovery was made in a remote desert location $($not disclosed for security$).$ An adventure hiking team found the remains of several individuals, but it was difficult to determine what they were due to degradation. Around the remains where a scattering of bits of twisted metal and wiring. Rumour quickly spread... it may be an alien crash site. You have been called in by the authorities to determine if these individuals are human or alien. You arrive at the secret secure facility, and you begin to inspect the evidence. Your task is to examine each piece of evidence shown to you and $1)$ determine if this piece of evidence suggests an earthly or extraterrestrial origin and $2)$ explain your conclusion for each piece of evidence.