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 scientifically bold orbital mission in 2013 can address profound and basic scientific gaps that remain in the era beyond MRO. Not surprisingly, there is no single instrument complement that addresses all of the highest priority science, and the science analysis group identified three primary mission scenarios that would address multiple objectives. The high priority measurements are each traceable to MEPAG and NRC goals. These measurements are directly linked to the requested science study areas of the Charter and other areas where critical gaps in current knowledge exist. All three scenarios address a theme of Dynamic Mars: Activity, Transport and Change. Any one of these three scenarios will return significant new information relevant to our understanding of the planet, its history and its potential for life. See article.
g Abodes - The International Astronomical Union has defined new rules for naming and categorizing dwarf planets. Those similar to Pluto and with orbits beyond Neptune will now be named 'plutoids'. See article.
g Message - Is anyone out there? The chance of spotting signals from extraterrestrials is about to soar, say SETI Institute scientists, who, together with radio astronomers at the University of California, Berkeley have begun building the first telescope to look around the clock for life on other planets. See article.
g Learning - Astronomy Online provides a wealth of resources and information for teachers, students, or anyone interested in astronomy. The content is arranged into nine broad categories including Observation, Science, Solar System, Stars, Our Galaxy, Cosmology, Astrobiology, Exoplanets and Astrophotography. See review.
g Aftermath - Scientists should pay greater attention to discussing the social implications of discovering extraterrestrial life - even though many researchers shy away from the subject because they don't consider it "hard" science. See article.
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.