43 FAQs about Strange Sightings (The Astronomy Cafe)

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 Back to the Astronomy Cafe - 365 of the most popular questions since 1996. Over 1 million page requests!

 Beginner:
  1. [Updated]Have you ever seen or heard something you could not explain scientifically?
  2. [Updated]On a clear night I saw Sirius changing colors from blue to white. Why does this happen?
  3. [Updated]What are those strange lights I keep seeing in the sky?
  4. Have you ever seen a UFO?
  5. Was there a 'Star of David' conjunction of the planets on January 23, 1997?
  6. My mother said that between 1947-1949 there were stars moving all over the sky. Any ideas what this was a reference to?
  7. Can you get a Moon Burn in the tropics from the Full Moon?
  8. Why does the color of Arcturus oscillate from red to green through a telescope?
  9. Have you ever heard sounds in space?
  10. What are 'spooklights', 'singing sands' and 'mistpouffers'?
  11. Would a bolide (fireball) look like a shiny disk hovering in the sky?
  12. Was there really an alien spacecraft crash at Roswell, New Mexico?
  13. How do you tell the difference between a genuine UFO and something else?
  14. How do you tell the difference with the naked eye between a star, a planet and a satellite?
  15. Street lights near the horizon do not twinkle, but the ones a few miles away do, and nearby ones don't. What causes this?
  16. Why do you believe 'spook lights' are real but not that UFOs are spacecraft?
  17. What are the Marfa lights in Texas?
  18. What do you think about the Face on Mars?
  19. What is your opinion about the thousands of people who say they have been abducted by UFOs?
  20. Have astronauts ever seen UFOs while in space?
  21. Do you think that the strange lights seen in Sweden were UFOs?
  22. Does the sky actually brighten a bit after your eye becomes dark adapted?
  23. Why are astronomers so hostile and negative about the existence of UFOs?
  24. What is a Moon Dog?"
  25. What are the weird photos that are taken of UFOs near the Sun?
  26. How often are the crescent moon and Venus seen together?
  27. What do you really think about UFOs?

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