Results 11 to 20 of about 836 (165)

Detectability of Solar Panels as a Technosignature

The Astrophysical Journal
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 ultraviolet-to-visible (UV-VIS) and in the near ...
Ravi Kopparapu, Vincent Kofman, Jacob Haqq-Misra, Vivaswan Kopparapu, Manasvi Lingam   +4 more
doaj   +4 more sources

Concepts for future missions to search for technosignatures [PDF]

Acta Astronautica, 2021
Accepted for publication in Acta ...
Socas-Navarro, Hector, Haqq-Misra, Jacob, Wright, Jason T., Kopparapu, Ravi, Benford, James, Davis, Ross, participants, TechnoClimes 2020 workshop   +6 more
openaire   +3 more sources

NASA and the Search for Technosignatures: A Report from the NASA Technosignatures Workshop [PDF]

, 2018
This report is the product of the NASA Technosignatures Workshop held at the Lunar and Planetary Institute in Houston, Texas, in September 2018. This workshop was convened by NASA for the organization to learn more about the current field and state of the art of searches for technosignatures, and what role NASA might play in these searches in the ...
NASA Technosignatures Workshop Participants
openalex   +3 more sources

A Search for Technosignatures Around 11,680 Stars with the Green Bank Telescope at 1.15–1.73 GHz

The Astronomical Journal, 2023
We conducted a search for narrowband radio signals over four observing sessions in 2020–2023 with the L -band receiver (1.15–1.73 GHz) of the 100 m diameter Green Bank Telescope.
Jean-Luc Margot, Megan G. Li, Pavlo Pinchuk, Nathan Myhrvold, Larry Lesyna, Lea E. Alcantara, Megan T. Andrakin, Jeth Arunseangroj, Damien S. Baclet, Madison H. Belk, Zerxes R. Bhadha, Nicholas W. Brandis, Robert E. Carey, Harrison P. Cassar, Sai S. Chava, Calvin Chen, James Chen, Kellen T. Cheng, Alessia Cimbri, Benjamin Cloutier, Jordan A. Combitsis, Kelly L. Couvrette, Brandon P. Coy, Kyle W. Davis, Antoine F. Delcayre, Michelle R. Du, Sarah E. Feil, Danning Fu, Travis J. Gilmore, Emery Grahill-Bland, Laura M. Iglesias, Zoe Juneau, Anthony G. Karapetian, George Karfakis, Christopher T. Lambert, Eric A. Lazbin, Jian H. Li, Zhuofu (Chester) Li, Nicholas M. Liskij, Anthony V. Lopilato, Darren J. Lu, Detao Ma, Vedant Mathur, Mary H. Minasyan, Maxwell K. Muller, Mark T. Nasielski, Janice T. Nguyen, Lorraine M. Nicholson, Samantha Niemoeller, Divij Ohri, Atharva U. Padhye, Supreethi V. Penmetcha, Yugantar Prakash, Xinyi (Cindy) Qi, Liam Rindt, Vedant Sahu, Joshua A. Scally, Zefyr Scott, Trevor J. Seddon, Lara-Lynn V. Shohet, Anchal Sinha, Anthony E. Sinigiani, Jiuxu Song, Spencer M. Stice, Nadine M. Tabucol, Andria Uplisashvili, Krishna Vanga, Amaury G. Vazquez, George Vetushko, Valeria Villa, Maria Vincent, Ian J. Waasdorp, Ian B. Wagaman, Amanda Wang, Jade C. Wight, Ella Wong, Natsuko Yamaguchi, Zijin Zhang, Junyang Zhao, Ryan S. Lynch   +79 more
doaj   +2 more sources

A Search for Technosignatures around 31 Sun-like Stars with the Green Bank Telescope at 1.15–1.73 GHz [PDF]

, 2021
We conducted a search for technosignatures in April of 2018 and 2019 with the L-band receiver (1.15-1.73 GHz) of the 100 m diameter Green Bank Telescope. These observations focused on regions surrounding 31 Sun-like stars near the plane of the Galaxy. We
Jean-Luc Margot, Pavlo Pinchuk, Robert Geil, Stephen Alexander, Sparsh Arora, Swagata Biswas, Jose Cebreros, Sanjana Prabhu Desai, Benjamin Duclos, Riley Dunne, Kristy Kwan Lin Fu, Shashwat Goel, Julia Gonzales, Alexander Gonzalez, Rishabh Jain, Adrian Lam, Briley Lewis, Rebecca Lewis, Grace Li, Mason MacDougall, Christopher Makarem, Ivan Manan, Eden Molina, Caroline Nagib, Kyle Neville, Connor O’Toole, Valerie Rockwell, Yoichiro Rokushima, Griffin Romanek, Carlyn Schmidgall, Samar Seth, Rehan Shah, Yuri Shimane, Myank Singhal, Armen Tokadjian, Lizvette Villafana, Zhixian Wang, In Yun, Lujia Zhu, Ryan S. Lynch   +39 more
openalex   +3 more sources

Rotational Doppler Cartography of Technosignatures on Unresolved Planets

The Astrophysical Journal
The discovery of many Earth-like planets has renewed interest in whether life and technological civilizations exist elsewhere. The Search for Extraterrestrial Intelligence (SETI) seeks evidence for technological civilizations via technosignatures across ...
Keitaro Takahashi
doaj   +2 more sources

Results from NASA’s First Radio Telescope on the Moon: Terrestrial Technosignatures and the Low-frequency Galactic Background Observed by ROLSES-1 on Board the Odysseus Lander

The Astronomical Journal
Radio wave Observations on the Lunar Surface of the photo-Electron Sheath (ROLSES-1) instrument on board Intuitive Machines’ Odysseus lunar lander represents NASA’s first radio telescope on the Moon, and the first United States spacecraft landing on the ...
Joshua J. Hibbard, Jack O. Burns, Robert MacDowall, Natchimuthuk Gopalswamy, Scott A. Boardsen, William Farrell, Damon Bradley, Thomas M. Schulszas, Johnny Dorigo Jones, David Rapetti, Jake D. Turner   +10 more
doaj   +2 more sources

Projections of Earth’s Technosphere: Strategies for Observing Technosignatures on Terrestrial Exoplanets

The Astrophysical Journal Letters
The search for technosignatures—remotely detectable evidence of extraterrestrial technology—draws upon examples from the recent history of Earth as well as projections of Earth’s technosphere.
Jacob Haqq-Misra, Ravi K. Kopparapu, George Profitiliotis   +2 more
doaj   +2 more sources

Technosignature Searches with Real-time Alert Brokers

The Astronomical Journal
We present an exploration of technosignature research that is possible using real-time alert brokers from surveys such as the Zwicky Transient Facility (ZTF) and the upcoming Legacy Survey of Space and Time (LSST).
Eleanor M. Gallay, James R. A. Davenport, Steve Croft   +2 more
doaj   +3 more sources

Bayesian approach to SETI. [PDF]

Proc Natl Acad Sci U S A, 2018
The search for technosignatures from hypothetical galactic civilizations is going through a new phase of intense activity. For the first time, a significant fraction of the vast search space is expected to be sampled in the foreseeable future ...
Grimaldi C, Marcy GW.
europepmc   +2 more sources