Results 71 to 80 of about 446 (178)

Life in a Random Universe: Sciama's Argument Reconsidered

The Astrophysical Journal
Random sampling in high dimensions has successfully been applied to phenomena as diverse as nuclear resonances, neural networks, and black hole evaporation. Here we revisit an elegant argument by the British physicist Dennis Sciama, who demonstrated that
Zhi-Wei Wang, Samuel L. Braunstein
doaj   +1 more source

Issue Information

Meteoritics &Planetary Science, Volume 61, Issue 7, Page 1097-1100, July 2026.
wiley   +1 more source

An Improved Machine Learning Approach for Radio Frequency Interference Mitigation in FAST–SETI Survey Archival Data

The Astronomical Journal
The search for extraterrestrial intelligence (SETI) commensal surveys aim to scan the sky to detect technosignatures from extraterrestrial life. A major challenge in SETI is the effective mitigation of radio frequency interference (RFI), a critical step ...
Li-Li Zhao, Xiao-Hang Luan, Xin Chao, Yu-Chen Wang, Jian-Kang Li, Zhen-Zhao Tao, Tong-Jie Zhang, Hong-Feng Wang, Dan Werthimer   +8 more
doaj   +1 more source

Periodic Radio Technosignature Search Toward 3I/ATLAS with FAST

The Astronomical Journal
3I/ATLAS, the third confirmed interstellar object discovered in the solar system, provides a unique opportunity for targeted technosignature searches. We report a periodic radio technosignature search toward 3I/ATLAS using the Five-hundred-meter Aperture
Li Jian-Kang, Zhen-Zhao Tao, Tong-Jie Zhang, Men-Quan Liu   +3 more
doaj   +1 more source

SETI@home: Data Analysis and Findings

The Astronomical Journal
SETI@home is a radio Search for Extraterrestrial Intelligence (SETI) project that looks for technosignatures in data recorded at the Arecibo Observatory.
David P. Anderson, Eric J. Korpela, Dan Werthimer, Jeff Cobb, Bruce Allen   +4 more
doaj   +1 more source

Ground to Dust: Collisional Cascades and the Fate of Kardashev II Megaswarms

The Astrophysical Journal
Extraterrestrial intelligences are speculated to surround stars with structures to collect their energy or to signal distant observers. If they exist, these most likely are megaswarms, vast constellations of satellites (elements) in orbit around the ...
Brian C. Lacki
doaj   +1 more source

Narrowband Radio Technosignature Search Toward 3I/ATLAS with FAST

The Astrophysical Journal
3I/ATLAS is the third confirmed interstellar object passing through the solar system. In this work, we conduct a narrowband radio technosignature search toward 3I/ATLAS using the Five-hundred-meter Aperture Spherical Telescope (FAST) L -band multibeam ...
Jian-Kang Li, Zhen-Zhao Tao, Tong-Jie Zhang   +2 more
doaj   +1 more source

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   +1 more source

Searching for Extraterrestrial Intelligence with the SKA

Published in Advancing Astrophysics with the SKAII(AASKAII), 2026(ArXiv:2606.20366) Report No.
Tremblay, Chenoa D., Andersson, Alex, Bright, Joe, Cabrales, Bárbara, DeBoer, David, Gajjar, Vishal, Garrett, Michael A., Keane, Evan F., Kim, Dong-Jin, Prabu, Steve, Price, Danny C., Siemion, Andrew P. V., Sheikh, Sofia Z., Tasse, Cyril, Zarka, Philippe, Cabrol, Nathalie, Callingham, Joseph R., Croft, Steve, Diamond, William, Drew, Jamie, Grattan, Kyran, Worden, S. Peter   +21 more
openaire   +2 more sources

In Space, No-One Can Hear the Screams of Paternalism: A Response to Häyry's Immorality of Space Exploration. [PDF]

Bioethics
Firth SJ.
europepmc   +1 more source