Welcome! “Alien Life” tracks the latest discoveries and thoughts in the various elements of the famous Drake Equation. You may notice that this and future entries are shorter than usual; career, family and book deal commitments have forced me to cut back some of my projects. Now, here’s today’s news:
g Stars - A decade-long mystery has been solved using data from ESA's X-ray observatory XMM-Newton. The brightest member of the so-called “magnificent seven” has been found to pulsate with a period of seven seconds. The discovery casts some doubt on the recent interpretation that this object is a highly exotic celestial object known as a quark star. See http://spaceflightnow.com/news/n0703/11neutronstars/.
g Abodes - A hot start billions of years ago might have set into motion the forces that power geysers on Saturn's moon Enceladus. See http://spaceflightnow.com/news/n0703/12enceladus/.
g Life - Cuatro Cienegas, a butterfly-shaped valley in Mexico’s Chihuahua desert, is a living laboratory for astrobiologists. By studying this unique and endangered ecosystem, they hope to learn more about the earliest life on Earth. See http://www.astrobio.net/news/modules.phpop=modload
&name=News&file=article&sid=2277mode=thread&order
=0&thold=0.
g Message - Book alert: The father-son team of David E. Fisher and Marshall Jon Fisher brings the study of extraterrestrial life down to earth in “Strangers in the Night: Brief History of Life on Other Worlds,” an informative and entertaining book. In the anecdotal style that is their hallmark, the Fishers trace humankind’s attempts to discover life on other worlds. This informative and entertaining book tells the story of humankind’s attempts throughout history to discover extraterrestrial life. See http://www.amazon.co.uk/exec/obidos/ASIN/1887178872
/boggysgeologylin/20292899029087057.
g Learning - Here’s a neat classroom activity courtesy of DiscoverSchool.com: “Extraterrestrials.” In the activity, a digital radio message, intended to alert any intelligent life in space to the existence of intelligent life on Earth, has been electronically transmitted into space by the Arecibo radio dish in Puerto Rico. Students must ensure the message is effective by showing that the senders (humans from Earth) are capable of advanced thinking — but it must not depend on the ability of extraterrestrials to understand any Earth language. See http://school.discovery.com/lessonplans/
programs/extraterrestrials.rtf.
g Aftermath - Could religions survive contact with extraterrestrials? The Medieval Church didn't think so, as the discovery would challenge mankind's central role in the cosmos. Today such ideas are considered old fashioned, and many theologians welcome the discovery of life — even intelligent life — among the stars. But if scientists were to find microscopic Martians or a signal from another world, would established religions really take it in stride? For a discussion, check out this past program of SETI’s “Are We Alone?” at http://www.seti.org/site/apps/nl/newsletter2.aspc=ktJ2J9MMIsE&b=
289154. Note: An mp3 player is required to play the audio files; you can download one at the site for free.
The Drake Equation
This formula estimates the number of intelligent civilizations in our galaxy.N=(R*)(Ns)(Fp)(Ne)(Fl)(Fi)(Fc)(L)
Where:- N = Number of civilizations we can communicate with
- R* = Average star formation rate
- Ns = Percentage of stars capable of supporting earth-like planets
- Fp = Percentage of those stars with planets
- Ne = Average umber of planets in those stars' habitable zones
- Fl = Percentage of those planets where life begins
- Fi = Percentage of planets with life where an intelligent species evolves
- Fc = Percentage of those intelligent species that develop communication technology
- L = Average lifetime, in years, of a civilization that develops such technology
About Me
- Rob Bignell
- I'm the owner and chief editor at Inventing Reality Editing Service, which meets the editing and proofreading needs of writers both new and published. For more than two decades, I worked as an award-winning journalist, with half of those years spent as an editor. Several of my short stories in the literary and science fiction genres have been published, and I am the author of the nonfiction “Hikes with Tykes” series, a novel "Windmill", and a collection of poetry, "Love Letters to Sophie's Mom". For seven years I worked as an English teacher or a community college journalism instructor. I hold a master's degree in English and a bachelor's in journalism and English.