The details to be given are:\na.) What are they?\nb.) Why do they occur?\nc.) What is the phenomena behind them?\nd.) Where can you see them?\ne.) When do they occur/
214956
The aurora borealis (the Northern Lights) and the aurora australis (the Southern Lights) have always fascinated mankind, and people even travel thousands of miles just to see the brilliant light shows in the earth's atmosphere. The auroras, both surrounding the north magnetic pole (aurora borealis) and south magnetic pole (aurora australis) occur when highly charged electrons from the solar wind interact with elements in the earth's atmosphere. Solar winds stream away from the sun at speeds of about 1 million miles per hour. When they reach the earth, some 40 hours after leaving the sun, they follow the lines of magnetic force generated by the earth's core and flow through the magnetosphere, a teardrop-shaped area of highly charged electrical and magnetic fields. \nAs the electrons enter the earth's upper atmosphere, they will encounter atoms of oxygen and nitrogen at altitudes from 20 to 200 miles above the earth's surface. The color of the aurora depends on which atom is struck, and the altitude of the meeting. \n\nGreen - oxygen, up to 150 miles in altitude \nRed - oxygen, above 150 miles in altitude \nBlue - nitrogen, up to 60 miles in altitude \nPurple/violet - nitrogen, above 60 miles in altitude \nAll of the magnetic and electrical forces react with one another in constantly shifting combinations. These shifts and flows can be seen as the auroras "dance," moving along with the atmospheric currents that can reach 20,000,000 amperes at 50,000 volts. (In contrast, the circuit breakers in your home will disengage when current flow exceeds 15-30 amperes at 120 volts.) \nThe auroras generally occur along the "auroral ovals," which center on the magnetic poles (not the geographic poles) and roughly correspond with the Arctic and Antarctic circles. There are times, though, when the lights are farther south, usually when there are a lot of sunspots. Sunspot activity follows an 11-year cycle. The next peak will occur in 2001 and 2002, so opportunities to see auroras outside their normal range should be good. \n\nThere are many stories about sounds associated with auroras, but there are no recordings of auroral sounds. Scientists can't agree on what would produce sounds during the aurora.
282501
weirdness.. what is the question????
326140
Something that baffles understanding and cannot be explained
628340
an object or light reportedly seen in the sky whose appearance, trajectory, and general dynamic and luminescent behavior do not readily suggest a logical, conventional explanation. Some of these phenomena have been photographed and others correlated with radar echoes. Throughout history there have been reports of strange objects in the sky. In the 20th cent. a number of observers claim to have seen vehicles, or “flying saucers,” which some believe are space ships visiting the earth from other planets. Because the objects are often shining and in that part of the sky opposite the sun, most investigators, official and unofficial alike, tend to interpret them as reflections of the sun's rays from airplanes. Some UFOs, when pursued by planes, have proved to be weather balloons or other objects of unquestionably terrestrial origin. Fireballs, meteors, and other meteorological phenomena account for most of the relatively few UFOs that observers report seeing at night. However, there are some sightings that investigators are unable to explain in terms of known phenomena
34240
YES... What would you like to know about them?  You need to let people know so they can post answers.
302410
"What specifically causes poltergeist activities?"\n\nalcohol and/or overactive imaginations
228411
This is an subject area where vocabulary is vital for clear understanding, to a degree I am not capable of, however the stuff that you ask about are so small that the only way to attempt to prove their existence is through mathematical formulae based on what we suspect to be true. Our lack of understanding on this subject, which is still very voung, means the answers available are sketchy at best compared to our understanding of molecular structure or atomic structure.\nWhat is known so far can be found in places like the noetic sciences knowledge centre, or wikipedia.
219308
Here are a few resources.\n\nHappy haunting...
94128
People sort of understand waves and they understand particles, light might be a disturbance in the space time continum. Just a definate bit energy with an uncertainty where it is, traveling. Some "particles" exist for such a short time , they are more a resonance. I am looking forward to new research and thoughts on nature of light.
143806
You have to remember these are descriptions based on experiments. Light can act as both- as do other particles. Keep in mind that the map is not the territory.....
613791
Come on now. Do your own homework. Wouldn't it be more efficient use of your time on the computer to search for "recent scientific article"\nTry americanscientist.org or .com or .edu
224027
I found a bunch of them at this addy\n\nhttp://www.newscientistspace.com/article.ns?id=mg18524911.600\n\nand 125 questions we don't know the answer too\n\nhttp://www.sciencemag.org/sciext/125th/
377417
Some examples can be found here: http://www.ufoinfo.com/humanoid/humanoid1980.shtml\n\nFor other years' sightings, click on the menu on left of that page, Research, Humanoid Sightings.
373722
Wikipedia is great for complicated phenomena such as this. Just be careful not to 'lift' chunks of text for your project, unless you cite your source!\n\nGood luck.
594720
No.\n\nI can always find a real world explanation for things that seem "mysterious" to me. You just have to be willing to question things and go out and look for the real answer.
446622
neat! get a camera and talk to the ghost when you feel or see things. ask it if you can take a picture of it. there are great websites out there with tons of information.
439118
Hi, I answered this question earlier. I'm going to cut and paste it for you.\n--\nMost sightings happen at night. People see strange lights or shapes in the sky.\nMine happened in broad daylight. Crystal clear blue sky. About noon. No sun in my eyes. An object appeared in the sky directly in front of me. It was traveling parallel to the ground. It wasn't zipping along at lightning fast speed. It was fairly slow. About airplane speed. \nIt wasn't more than a half mile away. Fairly low in the sky.\nI could see every detail. The color. It was a semi-shiny or brushed metallic almost burnt looking. Very hard to explain. All one color. No markings. No lights. I could see the intricate patterns of the body. I wont ever describe them. I'm not planting any seeds. When I hear an identical description then I'll know it was real. You see this was 25 years ago. To this day nobody has matched the description. Not even close. I watched it for a few seconds. I was in amazement. It simply vanished. \n--\nPsst, don't take me wrong. I'm not discounting your sighting at all. Just because it was at night doesn't mean you didn't see it. I totally believe you. Look at my story. People tell me I imagined it. What do they know anyway!\n.