Can Rogue Planets Have Liquid Water and Communicate Without Radio Waves? | Weekly Question Show

🌍Rogue planets can have liquid water through a combination of a thick hydrogen atmosphere and radioactive material in the core and mantle.

🛰️Hycian worlds, such as K218b, are exciting due to their potential for habitability and wider habitable zones compared to terrestrial worlds.

📡Aliens could potentially communicate using methods other than radio waves, but SETI continues to focus on radio waves as a starting point.

🌌Gravitational wave detectors like LIGO are specifically designed to detect short chirps from events like colliding black holes, but not gravitational background radiation.

👽Scientists consider a wide range of potential techno signatures and wavelengths that could be used for interstellar communication and are exploring the possibilities of neutrinos and gravitational waves.

How can rogue planets have liquid water?

—Rogue planets can have liquid water due to the combination of a thick hydrogen atmosphere and heat generated by radioactive material in their core and mantle.

What makes hycian worlds like K218b exciting?

—Hycian worlds have thick hydrogen atmospheres that act as powerful greenhouse gases, allowing for wider habitable zones and potential habitability even at greater distances from their star.

Can aliens communicate using methods other than radio waves?

—While it is possible that aliens could communicate using other methods, SETI (Search for Extraterrestrial Intelligence) continues to focus on radio waves as a starting point for detection.

How do gravitational wave detectors like LIGO work?

—Gravitational wave detectors like LIGO detect short chirps generated by events such as colliding black holes, but they are not designed to detect gravitational background radiation or longer events.

What other wavelengths and methods are being explored for interstellar communication?

—Scientists are exploring the possibilities of neutrinos and gravitational waves as potential methods for interstellar communication, along with considering various techno signatures in different wavelengths.

00:00The Weekly Question Show explores topics related to rogue planets, liquid water, alien communication, and more.

05:59Rogue planets with thick hydrogen atmospheres and heat generated by internal radioactive material can have liquid water on their surface.

13:58Hycian worlds like K218b have thick hydrogen atmospheres that make them exciting due to their wider habitable zones.

20:25Aliens could potentially use communication methods other than radio waves, but SETI continues to focus on radio wave detection.

29:10Gravitational wave detectors like LIGO are designed to detect short chirps from events like colliding black holes but are not sensitive to gravitational background radiation.

42:20Neutrinos and gravitational waves are being explored as potential methods for interstellar communication, along with various techno signatures in different wavelengths.