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Could there be life on the moon Pandora? |
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Pandora is a very small icy moon of Saturn, about 100 km long, discovered by the Voyager spacecraft in 1980. See Wikipedia at [http://en.wikipedia.org/wiki/Pandora_(moon)]. I can hardly think of a less likely place to look for life. Unfortunately, you may be thinking of the fictional location featur... Click here for more.
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Some scientists are saying that all ice on the artic ocean will be gone...could it happen so fast?....i thought that the water level would increase with 1 meter or 2 before 2100 but not faster -- is that fake or a hoax?....and i read that the movie "an inconvenient truth" is forbidden to be shown in schools because it contains many errors -- is that true?. |
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In the past two decades the Arctic ice has thinned and receded. One consequence is the opening of the Northwest Passage to ships for the first time in human history. Current predictions are that within another two decades the Arctic Sea may be ice-free at the end of summer. However, melting of float... Click here for more.
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I just wanted to know if the scientists could predict wrong of when the sun goes
supernova. The reason why I ask this is because it says that in the movie The Knowing. And there's also a movie called 2012: Supernova which talks about that, and the regular movie 2012. Does this all tie together somehow? |
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I keep asking people to distinguish between fact and fiction. The three movies you mention are pure fiction, completely unconnected to scientific reality. There have been lots of science fiction films made, some good and some bad as entertainment, but few of them make any attempt to get the science ... Click here for more.
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I know we have a corupt government, and I know nasa works closley with the government. If they told you to keep quiet about 2012 to keep panic down would you still tell the people the truth? As a concerned citizen I feel compelled to ask the question. |
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I am sorry you feel this way about your government and are willing, apparently, to think it is trying to deceive you. NASA is a part of the government (an Executive Agency). I strongly disagree with your statement that we have a corrupt government. You may not agree with some government policies, an... Click here for more.
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You stated that "Most of the observed temperature variations up to beginning of the twentieth century can be traced to small changes in solar output, plus changes in the Earth’s orbit, plus short-term cooling associated with large volcanic eruptions..." I understand the other causes but haven't heard very much about the Earth's orbit changing. How is it changing and how has it affected our climate? |
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There are slow changes in the eccentricity of the orbit and the tilt of the Earth’s axis. These matter for the climate of the planet even though they do not change the total amount of sunlight reaching us, because it makes a difference where the sunlight falls (near the poles vs. near the equator) o... Click here for more.
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You discussed life evolving about 4 billion years ago. What is it that keeps single-cells from following that same process today? In other words, since it happened 4 billion years ago, why not today? Or is it happening and we don't hear about it? |
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Conditions on Earth today are dramatically different from those when life began 4 billion years. The most obvious differences are (1) the ocean chemistry does not contain the abundant organic (carbon-based) compounds that we think were present then, and (2) the presence of oxygen in the atmosphere a... Click here for more.
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Was blue-green algae the first form of life on this earth? |
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We do not know what the first form of life was on Earth, but I am sure that whatever it was it is not still here. The process of evolution pretty well guarantees that more capable life forms will eventually replace the more primitive. I would not call any of the life on Earth today primitive; at the... Click here for more.
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We know that life on earth was formed due to its favorable conditions and because of water, then why isn't there any life on moon even though it almost the same distant as earth and water was found on it? |
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The key requirement for life as we know it is liquid water. No liquid water has been found on the Moon, just frozen water (ice) and water in chemical combination with surface minerals. With no liquid water, the Moon does not to appear to meet the minimum requirements for life.
Davi... Click here for more.
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Is global warming is real? Because my science teacher says its all fake. |
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I am sorry to say that your science teacher is wrong. Global warming is both real and threatening. As more and more data have been gathered, the world’s atmospheric and climate scientists have become convinced of this fact. The only reason I can imagine that your science teacher disputes this is the... Click here for more.
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What are the chances of our solar system being part of a binary system? i know if we had a sister sun we would probably see it, but what if it was a dark star or a burnt out sun thats just like a hot coal floating around out there, and if there is such a possibility whats the possibility of said sun to have planets circling it and if its possible for any of those planets to house life? |
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The chances are zero that the Sun is a binary star with an undiscovered stellar companion. There is no such thing as a dark star or a burnt-out star. A faint red dwarf companion might be difficult to see in visible light but it would be readily discovered by any of several infrared sky surveys. The ... Click here for more.
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