It looks like you're using an Ad Blocker.
Please white-list or disable AboveTopSecret.com in your ad-blocking tool.
Thank you.
Some features of ATS will be disabled while you continue to use an ad-blocker.
Originally posted by reject
I bet they told ET we have enough nukes to destroy both the earth and the moon. Stay away
Originally posted by ewokdisco
fear not,human, if 'they' attack, you won't even know it. you'll be typing a "why i think the moon is occupied" message on here and WHOOSH...you're gone.
ps: who is that man in that picture.the black and white one?
Originally posted by Bob Sholtz
reply to post by Matrix Rising
as much as i love hawking, his logic is flawed, he has underestemated the odds. there are things called "anthropic constants". basically, precise and narrowly defined variables that must be exact for life to exist.
Anthropic Constant 1: Oxygen Level
On earth, oxygen comprises 21 percent of the atmosphere. That precise figure is an Anthropic Constant that makes life on earth possible. If oxygen were 25% fires would erupt spontaneously, if it were 15%, human beings would suffocate.
Anthropic Constant 5: Gravity
If the gravitational force were altered by 0.00000000000000000000000000000000000001 percent, our sun would not exist, and, therefore neither would we. Talk about precision
Anthropic Constant 8: Speed Of Light
Any of the laws of physics can be described as a function of the velocity of light (now defined to be 299,792,458 meters per second). Even a slight variation in the speed of light would alter the other constants and preclude the possibility of life on earth.
Anthropic Constant 10: Jupiter.
If Jupiter were not in it’s current orbit, the earth would be bombarded with space material. Jupiter’s gravitational field acts as a cosmic vacuum cleaner, attracting asteroids and comets that might otherwise strike earth.
Originally posted by JScytale
no scientist (or rational human being, for that matter) would ever declare alien life impossible. almost all regard it as not only probable, but almost certain, given the vastness of the universe. not a single one will treat alien visitation as likely however, because not only is there no real evidence pointing to specifically that conclusion, but it is mathematically unlikely as well.
Prof Says Beings From Outer Space Have Visited Earth
Associated Press, November 26, 1962
LOS ANGELES. (AP) - Some of the best scientific minds in the country were stumped when a slender, dark-haired young man chalked on the blackboard this equation:
N equals R FP NE FL FI FC L.
The speaker was Dr. Carl Sagan, a 28 year-old assistant professor of astronomy at Harvard University.
His audience consisted of several hundred members of the American Rocket Society, gathered for his luncheon address.
The equation was his way of expressing the mathematical probability that intelligent beings from outer space have visited earth.
Sagan soberly explained that in his equation N Stands for the number of advanced technical civilizations in the universe possessing the capability of interstellar communication.
R is the mean rate of star formation averaged over the lifetime of the galaxy.
FP is the fraction of stars with planetary systems.
NE is the mean number of planets in each system with environments favorable for the origin of life.
FL is the fraction of such planets on which life does develop.
FI is the fraction of such inhabited planets on which intelligent life with manipulative abilities rises during the lifetime of the local sun.
FC is the fraction of planets populated by intelligent beings on which advanced technical civilizations rises.
And L is the lifetime of this technical civilization.
Sagan said information in his formula is based on current estimates by astronomers. In making calculations, he assigned each symbol an arbitrary numerical value.
As expressed in numbers, Sagan said, the formula means that at least 1 million of the 100 billion stars in our Milky Way galaxy have planets which have developed civilizations capable of travel between the stars.
"Let's say that each of these civilizations sends out one interstellar expedition per year," he said.
"That means that every star, such as our sun, would be visited at least once every million years. In some systems where these beings found life, they would make more frequent visits. There's a strong probability, then, that they have visited earth every few thousand years.
"It is not out of the question that artifacts of these visits still exist or even that some kind of base is maintained, possibly automatically, within the solar system, to provide continuity for successive expeditions.
"Because of weathering and the possibility of detection and interference by the inhabitants of earth it would be preferable not to erect such a base on the earth's surface. The moon seems one reasonable alternative."
"Forthcoming photographic reconnaissance of the moon from space vehicles - particularly of the back - might bear these possibilities in mind."
At a news conference Sagan predicted man himself would be capable of interstellar flight at close to the speed of light "within a century or two."
Asked if he believed in flying saucers, he said: "I do believe there are objects which have hot be identified."
Link
Originally posted by Tearman
Hasn't Stephen Hawking held these positions for quite a long time: That ETs are likely, and that we should be cautious about letting them know of our existence?
Originally posted by Asherah
I've never understood why some people think the aliens are our friends. And that they are going to help us.
I've always intuitively felt that aliens are not to be trusted, and that they harm people.
I
Originally posted by Bob Sholtz
reply to post by Matrix Rising
as much as i love hawking, his logic is flawed, he has underestemated the odds. there are things called "anthropic constants". basically, precise and narrowly defined variables that must be exact for life to exist.
"Astrophysicist Hugh Ross has calculated the probability that these and other constants (122 in all) would exist today for any planet in the universe by chance (I.e., without Divine design). Assuming there are 10^22 planets in the universe (a very large number: 1 with 22 zeros following it), his answer is shocking; one chance in 10^138, that’s one chance in one with 138 zeros after it. There are only about 10^70 atoms in the entire universe."
do i believe that life exists elsewhere? meh, i'm not sure. but to claim that the odds are in favor of life existing elsewhere is silly when the chances of life existing on our own planet is so slim.