SETI and the Puzzling Case of the Star HD 139139 | Summary and Q&A

TL;DR

HD 139139, a star studied during the K2 Kepler mission, exhibits strange and random dips in its light curve that resemble planet transits. Various scientific explanations have been proposed, including asteroids, disintegrating planets, circumstellar disks, and star spots. However, the possibility of an alien origin, similar to the potential alien megastructures in Tabby's Star, cannot be ruled out yet.

Key Insights

• 🙂 The Kepler spacecraft discovered HD 139139, a star exhibiting random dips in its light curve that resemble planet transits.
• 🪐 Several explanations have been proposed, including multiple planets, asteroids, disintegrating planets, circumstellar disks, and star spots.
• ❓ The observed anomalies do not fit perfectly with any of the proposed explanations.
• 👽 The possibility of an alien origin, such as alien megastructures or unconventional forms of communication, cannot be ruled out completely.
• 🤨 HD 139139's anomalies raise questions about the formation and stability of planetary systems.
• 👨‍🔬 Further observation and research are needed to determine the true nature of HD 139139's behavior.
• ❓ The exploration of HD 139139 highlights the continuous uncovering of unexplained phenomena in the universe.

Transcript

Once again, data from the now defunct Kepler spacecraft has yielded something very strange. Unprecedented strange in the same way that the star KIC 8462852 or Tabby’s Star was back in 2016 when I started this channel. Now we have another star, and it’s even stranger than Tabby’s star. In a paper by Saul Rapport and colleagues, link below, they deta... Read More

Questions & Answers

Q: What did the Kepler spacecraft measure in stars during its mission?

The Kepler spacecraft measured light coming from stars to detect the presence of exoplanets, exocomets, dust clouds, and other objects passing between the star and the spacecraft.

Q: How do exoplanets typically transit their stars in the Kepler data?

Exoplanets orbit their stars and periodically block the star's light, resulting in regular and predictable dips in the light curve.

Q: Why is HD 139139's behavior different from the typical patterns seen in exoplanet transits?

Unlike regular exoplanets, HD 139139 exhibits random and non-periodic dips in its light curve. Additionally, most of the objects causing the dips have similar sizes, which is unusual.

Q: Could HD 139139's anomalies be the result of alien megastructures?

While it is more likely that the behavior of HD 139139 has a natural origin, the possibility of alien megastructures, similar to the theory proposed for Tabby's Star, cannot be completely dismissed.

Summary & Key Takeaways

• The Kepler spacecraft discovered the strange behavior of HD 139139, a star exhibiting numerous random dips in its light curve during the 87-day observation period.

• The dips resemble planet transits, but they are not periodic and have similar sizes, except for one larger dip.

• Scientists have considered various explanations, including multiple planets, asteroids, disintegrating planets, circumstellar disks, and star spots. However, none of these explanations fully account for the observed anomalies.