Interstellar comet 3I/ATLAS is now on its way out of our solar system, never to return.
Intelligence & Language
CETI / SETI: The Phonology Of Sperm Whale Coda Vowels
Sperm whales (Physeter macrocephalus) communicate using series of clicks known as codas. In previous research, sperm whale codas have been shown to resemble human vowels acoustically.
The New Geological Age That Never Was Or The Multiple Layers Of The Transientocene
Since its humble origins, humans have left imprints on the face of the planet. From the profound transformation unleashed by the Neolithic Revolution, about 12000 years ago, till the present, […]
A TESS Test of the Hybrid Ring Strategy for Technosignature Searches Using GRB 221009A
We present the first observational test of the hybrid ring strategy, a general coordinated signaling scheme proposed by Seto (2025), which provides a practical Schelling-point realization for interstellar signaling.
Narrowband Radio Technosignature Search Toward 3I/ATLAS With FAST
3I/ATLAS is the third confirmed interstellar object passing through the Solar System. In this work, we conduct narrowband radio technosignature search toward 3I/ATLAS using the Five-hundred-meter Aperture Spherical Telescope (FAST) […]
SPHEREx Wide-Field Infrared Spectral Mapping of Interstellar Ices and Polycyclic Aromatic Hydrocarbons
We present some of the first infrared spectral maps acquired by SPHEREx. These maps, which to our knowledge are the largest of their type ever compiled in the near-infrared, reveal […]
Broadband SETI: A New Strategy To Find Nearby Alien Civilizations
One of the most interesting questions that astronomy can hope to answer is: are we alone in our Milky Way galaxy?
Stellar Engines And Dyson Bubbles Can Be Stable
A range of speculative space ventures envisage the use of ultra-large structures for the collection and reflection of light.
Rotational Doppler Cartography Of Technosignatures On Unresolved Planets
The discovery of many Earth-like planets has renewed interest in whether life and technological civilizations exist elsewhere.
Constraining the Lifespan of Intelligent Technological Civilization in the Galaxy
In this work, we explore constraints on the emergence and longevity of technologically intelligent civilizations in our Galaxy, considering the Fermi paradox.
