SearchLites - Vol 16 No 4

Magazine Overview

SearchLites, Volume 16, Number 4, Autumn 2010, is the quarterly newsletter of The SETI League, Inc. This issue focuses on various aspects of SETI research, space exploration, and scientific inquiry, contrasting the approaches of different organizations and discussing significant historical and ongoing projects.

Articles and Features

SETI Institute Reinvents SETICon

This article, written by H. Paul Shuch, Executive Director Emeritus of The SETI League, discusses the SETI Institute's recent 'SETICon' event. Shuch notes the similarities and differences between the SETI Institute's approach and The SETI League's own past 'SETICons.' While acknowledging the SETI Institute's success and its role in advancing SETI science, particularly with the Allen Telescope Array, Shuch highlights The SETI League's grassroots, volunteer-driven model and its Project Argus initiative. He expresses a slight disappointment that The SETI League was not invited to participate in the SETI Institute's event.

Finding a Benford Beacon

Authored by Paul Gilster, this guest editorial discusses the work of James and Gregory Benford on 'Benford beacons' – short, powerful interstellar transmission bursts. The article contrasts this with the public's perception of SETI, often influenced by movies like 'Contact.' It questions whether the 'Wow' signal might have been a Benford beacon and introduces Project Argus as The SETI League's ambitious effort to achieve full-sky coverage with 5,000 amateur radio telescopes. The cost-effectiveness of Project Argus compared to traditional large radio telescopes is emphasized, and the initiative is presented as a complementary approach to the SETI Institute's work.

The Enduring Legacy of the Voyagers

Written by Larry Klaes, this article chronicles the Voyager program, detailing the initial 'Grand Tour' mission concept and its eventual focus on Jupiter and Saturn. It highlights the scientific discoveries made by the Voyager probes, including the complex cloud patterns and active volcanoes on Jupiter's moons, and the icy surface of Europa with its potential subsurface ocean. The article also discusses the golden records sent with the Voyagers as a message to potential extraterrestrial civilizations and quotes Carl Sagan on humanity's hope and passion for the future.

Pioneer Plaque Immortality

This piece by Nick Sagan reflects on the Pioneer Plaque, featuring his mother's artwork. He describes the plaque as a form of immortality, representing humanity's optimism and its drive to explore and reach out to others. The plaque serves as a record of who we are and where we come from, potentially becoming a relic of our civilization.

Greenpeace, Which Side Are You On?

In this guest editorial, Adriano V. Autino of the Space Renaissance Initiative calls on Greenpeace to advocate for space-based solar power as a solution to environmental issues, particularly the reliance on oil. He references the 2010 Gulf of Mexico oil platform disaster and urges Greenpeace to support initiatives that promote the survival and progress of humanity through space technology.

Exoplanet-Lithium Link Debated

This article by Douglas Pierce-Price and Patrick Baumann discusses research measuring lithium levels in Sun-like stars with and without exoplanets. The findings suggest that lithium levels decrease with stellar age and are not significantly affected by the presence of planets, contradicting earlier research. The ongoing nature of scientific research and the potential for further debate on the topic are highlighted.

Alien Invasion: Why Stephen Hawking is Wrong

Paul Davies, in this guest editorial, refutes Stephen Hawking's argument that alien contact would be detrimental to humanity, comparing it to Columbus's arrival in America. Davies argues that advanced aliens would likely have observed Earth from afar and would not be motivated by resources. He also points out the vast distances involved in interstellar travel, making aggressive invasion unlikely, and suggests that humanity's own violent tendencies might be the greater threat.

Book Preview: Searching for Extraterrestrial Intelligence

This section previews a book edited by H. Paul Shuch, titled 'SETI Past, Present, and Future.' The book is described as a collection of essays by leading SETI scientists, covering the history, current state, and future directions of SETI research, including interstellar message construction and the implications of contact.

Event Horizon

This section lists upcoming conferences and meetings relevant to SETI and space exploration, including various IAA symposia, astronautical congresses, and SETI League annual events and ham radio QSO parties.

Recurring Themes and Editorial Stance

The recurring themes in this issue include the diversity of approaches within the SETI community (SETI Institute vs. SETI League), the importance of amateur contributions to scientific research (Project Argus), the historical milestones in space exploration (Voyager, Pioneer), and the philosophical considerations of extraterrestrial contact. The editorial stance, as represented by The SETI League, is one of promoting SETI science through both professional and grassroots efforts, encouraging technological advancement, and maintaining an optimistic yet realistic outlook on the search for extraterrestrial intelligence and humanity's place in the cosmos.