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 - An exploding star first observed last September is the largest and most luminous supernova ever seen, according to University of California, Berkeley, astronomers, and may be the first example of a type of massive exploding star rare today but probably common in the very early universe. See http://spaceflightnow.com/news/n0705/07supernova/.
g Abodes - Scientists examining a spike in worldwide ocean temperatures 55 million years ago have linked it to massive volcanic eruptions that pushed Greenland and northwest Europe apart to create the North Atlantic Ocean. See http://www.sciencedaily.com
/releases/2007/04/070426145029.htm.
g Intelligence - Neanderthals disappeared from Earth more than 20,000 years ago, but figuring out why continues to challenge anthropologists. One team of scientists, however, now says they have evidence to back climate change as the main culprit. See http://www.livescience.com/environment/070504_neanderthals
_climate.html.
g Message - How will we decode any message from ET? For some speculation and a discussion of the inherent difficulties, see http://www.space.com/searchforlife/vakoch_messages_010706.
html; part II follows at http://www.space.com/searchforlife
/vakoch_messages_two_010712.html. Note: This story is from summer 2001.
g Cosmicus - A mission to test satellite servicing techniques took a giant leap forward in a 300-mile-high space ballet Saturday, when two spacecraft separated, spent an hour flying in tight formation, and automatically docked together again. See http://spaceflightnow.com/news/n0705/07orbitalexpress/.
g Learning - There’s a nice beginner’s guide to astronomy at Astrocentral (see http://www.astrocentral.co.uk/beginners.html). It also has a section on the search for alien life.
g Imagining - There’s an intriguing article online about how Species 8472 of “Star Trek: Voyager” fame was created. Read between the lines: Thoughts about our biases and expectations, as shaped by popular media and entertainment, played a role in designing the alien. See http://www.talax.fsnet.co.uk/des8472_1.htm.
g Aftermath - Let’s presume we have detected an extraterrestrial intelligence. We cannot tell for sure if the message was intended for us, or what it means. What should we do? See http://www.vexen.co.uk/life/out.html for some speculations.
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.