Joel Achenbach noted that no photograph, movie, piece of metal, or other evidence has definitively proven an alien presence on Earth.

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• Person: Not available Organization: News On 6
  Skeptics take aim at alien abductions, lie detectors - NewsOn6.com

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• Skeptics take aim at alien abductions, lie detectors - NewsOn6.com www.newson6.com News On 6 via serper

Referenced by nodes (3)

• Joel Achenbach entity
• aliens concept
• Earth location