Final answer:
ESP, UFOs, and dowsing are typically classified as pseudoscience. UFO sightings are often explained by natural or human-made occurrences, and there is no concrete evidence linking them to extraterrestrial life. The media may emphasize the extraterrestrial angle due to public fascination and the potential for profit.
Step-by-step explanation:
ESP, UFOs, and dowsing are topics that often fall under the category of pseudoscience. Not every UFO report has been explained, with some attributed to natural phenomena like bright planets, ball lightning, or meteors, and others to human craft or hoaxes. Amateur astronomers, who frequently observe the night sky, rarely report UFO sightings, and no UFO has provided physical evidence of nonterrestrial origin that could be tested in a laboratory. In the scientific community, and in particular among astronomers, there is no established evidence that UFOs are related to extraterrestrial visits. The search for extraterrestrial intelligence is conducted through projects like SETI, which use radio waves to attempt communication with potential intelligent life in distant planetary systems. The media's portrayal of UFOs as alien crafts might be influenced by a variety of factors, including public interest and commercial gain.