Cosmic haystack problem

Definition

The cosmic haystack problem refers to the immense difficulty of finding extraterrestrial intelligence due to the vastness of space and numerous variables involved. It likens the search to finding a needle in a haystack, where the 'haystack' is the enormity of the universe.

5 Must Know Facts For Your Next Test

1. The cosmic haystack problem involves factors such as signal frequency, transmission power, and directionality.
2. It was coined by Jill Tarter and encompasses multiple dimensions like time, space, frequency spectrum, and modulation techniques.
3. Technological limitations and vast distances make detecting potential extraterrestrial signals extremely challenging.
4. The Drake Equation attempts to estimate the number of active extraterrestrial civilizations but does not solve the cosmic haystack problem.
5. Advanced signal processing techniques and large-scale surveys like those conducted by SETI aim to address this problem.

Review Questions

• What are some key factors that contribute to the cosmic haystack problem?
• Who coined the term 'cosmic haystack problem'?
• How does the Drake Equation relate to but not solve the cosmic haystack problem?

Related terms

Drake Equation: A formula used to estimate the number of detectable extraterrestrial civilizations in our galaxy.

SETI: Search for Extraterrestrial Intelligence; scientific efforts aimed at detecting signals from alien civilizations.

Fermi Paradox: The apparent contradiction between high estimates of extraterrestrial civilization probabilities and lack of evidence or contact with such civilizations.