The Drake equation is a probabilistic argument used to estimate the number of active, communicative extraterrestrial civilizations in the Milky Way Galaxy.
What is the Drake Equation used for? Calculating the probability of making contact with extraterrestrial life.
It is determined by sociological factors and cannot be estimated until we meet aliens. - Drake equation can predict, but not that accurately.
The least well-known factor in the Drake equation is... the average lifetime of a technologically competent civilization.
Which of the following best describes why the Drake equation is useful in the study of astrobiology? It helps us think about the factors that would determine the likelihood that we could discover other civilizations.
In the Drake equation, what do we mean by fnow? The fraction of planets on which civilizations exist at the present time.
Which of the following best describes how the Drake equation is useful? It helps us understand what we need to know in order to determine the likelihood of finding other civilizations.
Which of the following best describes our current understanding of the possibility of fast interstellar travel through hyperspace? We do not know enough to say whether such travel is possible.
In what direction would the net (total) force point if the space probe were moving very quickly toward the Moon when at Position B? (total) force would be zero and not point in either direction.
It may be one in a trillion trillion (it's easy to imagine that), in which case, Earth life may be unique in the observable universe," Davies told Space.com in an email. "But Pa may be quite large. We simply can't say."
The secret formula of life is E (Events) + R (Response) = O (Outcome).
about 3 solar masses per yearThis quantity is called the "star formation rate". In our Galaxy the current star formation rate is about 3 solar masses per year (i.e. interstellar gas and dust corresponding to about 3 times the mass of the Sun goes into stars each year). However, all this mass doesn't necessarily go into 1 star.