Kardashev Type II civilization Archives

Reflectance of different surface components on a planet as a function of wavelength. The reflectance of silicon-based photovoltaics is shown as dashed curve. The ground model is based on the data from MODIS dataset https://modis.gsfc.nasa.gov/about/. The solar cell reflectivity data is from RELAB (Reflectance Experiments Laboratory (Pieters & Hiroi 2004) -- astro-ph.IM

Astronomy & Telescopes, Biosignatures & Paleobiology, Imaging & Spectroscopy, SETI & Technosignatures, Status Report

Detectability of Solar Panels as a Technosignature

by Keith CowingMay 9, 2024May 9, 2024

In this work, we assess the potential detectability of solar panels made of silicon on an Earth-like exoplanet as a potential technosignature. Silicon-based photovoltaic cells have high reflectance in the […]

Sky map of galaxy targets. The colored squares indicate whether the full source is covered by the GBT beam at all four bands (see Table 1), three bands, two, one, or none. The blue dots are galaxy targets in the southern hemisphere that are part of the Parkes Observatory sample for observation by Murriyang and are not discussed further here. At least one cadence was taken per source per band (Appendix A). All “on” pointings in a given cadence were aimed at the center of the target galaxy. -- astro-ph.IM

Astronomy & Telescopes, Biosignatures & Paleobiology, SETI & Technosignatures, Status Report

The Breakthrough Listen Search for Intelligent Life: Technosignature Search of 97 Nearby Galaxies

by Keith CowingDecember 8, 2023December 8, 2023

The Breakthrough Listen search for intelligent life is, to date, the most extensive technosignature search of nearby celestial objects.

Kardashev Type II civilization

Detectability of Solar Panels as a Technosignature

The Breakthrough Listen Search for Intelligent Life: Technosignature Search of 97 Nearby Galaxies

PJ Harvey Announces New Song “Voyager”

Fifty Years after Viking: The Promise of Solar System Microbiology and Microbial Ecology

Characterising Transiting Exoplanets At Long Orbital Period: Lessons Learned For PLATO From 10 Years Of Monitoring The HIP41378 System

Implications Of Self-consistent H2O Ice Optical Constants On Radiative Transfer Models Of Disks

The GAPS Programme at TNG LXXIV. A Reanalysis Of The Planetary Systems TOI-1272 And TOI-1694 With HARPS-N And Retraction Of The Planetary Interpretation Of TOI-1272 c