Algorithmic Communication with Extraterrestrial Intelligence

Extraterrestrial intelligence: an international petition.

The human species is now able to communicate with other civilizations in space, if such exist. Using current radioastronomical technology, it is possible for us to receive signals from civilizations no more advanced than we are over a distance of at least many thousands of light years. The cost of a systematic international research effort, using existing radio telescopes, is as low as a few mi...

Advancing the Search for Extraterrestrial Intelligence

Searching for Extraterrestrial Intelligence: An Archaeological Approach to Verifying Evidence for Extraterrestrial Exploration on Earth

In considering the possibility of the existence of Extraterrestrial Intelligence, an independent means of verifying eyewitness accounts of flying saucers and alien beings on Earth is proposed. The approach would be an archaeological one whereby various archaeological surveying and excavation techniques would be used to examine an alleged landing or crash site of an extraterrestrial craft. The a...

A Numerical Testbed for Hypotheses of Extraterrestrial Life and Intelligence

The search for extraterrestrial intelligence (SETI) has been heavily influenced by solutions to the Drake Equation, which returns an integer value for the number of communicating civilisations resident in the Milky Way, and by the Fermi Paradox, glibly stated as: “If they are there, where are they?”. Both rely on using average values of key parameters, such as the mean signal lifetime of a comm...

The Search for Extraterrestrial Intelligence in Earth's Solar Transit Zone.

Over the past few years, astronomers have detected thousands of planets and candidate planets by observing their periodic transits in front of their host stars. A related method, called transit spectroscopy, might soon allow studies of the chemical imprints of life in extrasolar planetary atmospheres. Here, we address the reciprocal question, namely, from where is Earth detectable by extrasolar...