PANOSETI (Pulsed All-Sky Near-infrared Optical Search for Extra Terrestrial Intelligence) is a dedicated SETI (Search for Extraterrestrial Intelligence) observatory that is being designed to observe 4,441 sq. deg. to search […]
SETI
Posted inSETI & Technosignatures
A Radio Technosignature Search Towards Proxima Centauri Resulting In A Signal-of-interest
The detection of life beyond Earth is an ongoing scientific endeavour, with profound implications. One approach, known as the search for extraterrestrial intelligence (SETI), seeks to find engineered signals (`technosignatures’) […]
Posted inSETI & Technosignatures
Search For An Alien Communication From The Solar System To A Neighbor Star
Under the hypothesis that our Galaxy has been fully explored by self-reproducing probes forming an efficient communication network at the galactic scale by direct links between neighboring systems, using the […]
Posted inAstrochemistry, Astronomy & Telescopes, Comets and Asteroids, Icy Worlds, Imaging & Spectroscopy, Interstellar, SETI & Technosignatures
On The Possibility Of An Artificial Origin For `Oumuamua
Science offers the privilege of following evidence, not prejudice. The first interstellar object discovered near Earth, Oumuamua, showed half a dozen anomalies relative to comets or asteroids in the Solar […]
Posted inSETI & Technosignatures
A Glint In The Eye: Photographic Plate Archive Searches For Alien Visitations
An advanced extraterrestrial civilisation that has discovered the Earth might have sent probes here. In this paper, we present a simple strategy to identify Non-Terrestrial artefacts (NTAs) in geosynchronous Earth […]
Posted inSETI & Technosignatures
The Search For Deliberate Interstellar SETI Signals May Be Futile
For more than 60 years, the predominant SETI search paradigm has entailed the observation of stars in an effort to detect alien electromagnetic signals that deliberately target Earth. However, this […]
Posted inSETI & Technosignatures
Breakthrough Listen Releases Analysis of Previously Detected Signal From Nearby Proxima Centauri
An intriguing candidate signal picked up last year by the Breakthrough Listen project has been subjected to intensive analysis that suggests it is unlikely to originate from the Proxima Centauri […]
Posted inSETI & Technosignatures
Stellar Gravitational Lens Engineering for Interstellar Communication and Artifact SETI
Several recent works have proposed “stellar relay” transmission systems in which a spacecraft at the focus of a star’s gravitational lens achieves dramatic boosts in the gain of an outgoing […]
Posted inSETI & Technosignatures
Intermittent Signals And Planetary Days In SETI
Interstellar signals might be intermittent for many reasons, such as targeted sequential transmissions, or isotropic broadcasts that are not on continuously, or many other reasons. The time interval between such […]
Posted inSETI & Technosignatures
A Machine-Learning-Based Direction-of-Origin Filter for the Identification of Radio Frequency Interference in the Search for Technosignatures
Radio frequency interference (RFI) mitigation remains a major challenge in the search for radio technosignatures. Typical mitigation strategies include a direction-of-origin (DoO) filter, where a signal is classified as RFI […]