Which star (or what region of space) did the "Wow!" signal come from?
97471
firget it, just pick me best answer so i can have ten points
948153
Good.  It's always fun seeing bright meteors (meteors are the streak you see in the sky;  a meteorite is the term used for such an object that survives it's plunge into the atmosphere and strikes the ground; a meteoroid is the same object still in open space).  Quite likely what you saw was one of the Orionids, especially if it seemed to eminate from the constellation Orion.  Those particular meteors are very fast and can be very bright.  The Orionids were pretty spectacular this year...I saw 5 of them in about 10 minutes during the peak.
625420
A star is any massive gaseous body in outer space, just like the Sun. Unlike a planet, a star generates energy through nuclear fusion and therefore emits light. All stars except the Sun appear as shining points in the nighttime sky that twinkle because of the effect of the Earth's atmosphere and their distance from us. The Sun is also a star, but it is close enough to Earth to appear as a disk instead, and to provide daylight.
1026927
1 large white star on a black field in the left hand side\n\nnice picture of the flag in the link provided
300254
None of them.  \nTechnetium has been observed both in spectral star signatures, and in very small quantities in pitchblende.  To quote from Wickepedia "In 1962, technetium-99 was isolated and identified in pitchblende from the Belgian Congo in very small quantities (about 0.2 ng/kg); there it originates as a spontaneous fission product of uranium-238. This discovery was made by B.T. Kenna and P.K. Kuroda."
511503
yes,A star in a cluster near the center of our Milky Way galaxy may be the largest and brightest ever found. Called LBV 1806-20, its five to 40 million times brighter than the Sun, at least 150 times as massive, and about 200 times wider.So i think it'd suit the query.
784805
Yes, a few times over its history and they were very interesting.  There was the time when they received pulses a few "hundred times a second."   That's right pulses a few hundred times a second, this could only be from a civilization.  What in nature, especially astronomy pulsed so strong, that fast that it could reach another star system?  Well, they're called Pulsars.\n\nThe first pulsar was discovered by chance by Jocelyn Bell and Anthony Hewish in 1967 who were actually studying distant galaxies at the time. Jocelyn Bell noticed small pulses of radiation when their telescope was looking at a particular position in the sky and for a short time scientists thought they might be coming from an extra-terrestrial civilisation. In fact the source of these pulses were initially referred to as LGM1, Little Green Man 1. Once established that the signals were not of this origin (and also not caused by people on Earth), the unidentified object they were coming from was called a "pulsar" because the emission was pulsed.\nhttp://outreach.atnf.csiro.au/education/everyone/pulsars/\n\nThen there are Quasars and other exotics systems that have surprised scientists with their signals, only later to be discovered natural.
907627
It could have been a variable star or you saw a nova. check the NASA site to see if they have any news about this. I didn't see anything there but in future here is the web page for NASA\nhttp://www.nasa.gov/news/highlights/index.html\nAlso could been the space station or a satellite
104812
Our galaxy is named the Milky Way because one of its spiral arms is visible in the night sky as a bright silvery white band. The Greeks called it the "Galaxias Kyklos (Milky Circle)", and the Romans called it the "Via Lactea (Milky Way)". The Greek term survived as the modern name "Galaxy". However, it is much later the we discover that the Milky Way was a galaxy of stars and that our Sun is one of the billions of stars within the Milky Way.\n\nThe Milky Way gets its name from a Greek myth about the goddess Hera who sprayed milk across the sky. The details of the Greek myth is as follows:\n\nIn order to win the hand of Alcmene, the youth Amphitryon was required to avenge the death of Alcmene's brothers. On the very night that Amphitryon fulfilled his pledge, the supreme god Zeus disguised himself as the youth and stole into Alcmene's chamber. He assured her that the act of vengeance had been fulfilled, and lay with her. The result of their union was the hero Hercules.\n\nZeus' wife Hera was notoriously jealous of her husband's infidelities, usually taking vengeance on either the rival, or the children of Zeus' extra-marital couplings. On this occasion, however, Zeus outwitted Hera. He arranged for her to come across the infant as if abandoned, and in compassion the goddess began to suckle it, thereby granting Hercules the gift of immortality through her milk. But Hercules gave Hera's nipple such a lusty tug that the goddess screamed in pain. As she pulled the child away from her, a fountain gushed from her breast. Some of the milk fell to the earth, to form lilies, but most of it shot into the sky, to become the Milky Way.
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STARS AND NEBULAE.\n\nMost of the things you can see in the night sky are stars: a few thousand are visible to the unaided eye. A star is a hot ball of mostly hydrogen gas; the Sun is an example of a typical, ordinary star. Gravity keeps the gas from evaporating into space, and pressure due to the star's high temperature and density keeps the ball from shrinking. In the core of the star, the temperature and densities are high enough to sustain nuclear fusion reactions, and the energy produced by these reactions works its way to the surface and radiates into space as heat and light. When the fuel for the fusion reactions is depleted, the structure of the star changes. The process of building up heavier elements from lighter ones by nuclear reactions, and adjusting the internal structure to balance gravity and pressure, is called stellar evolution. \nLooking at a star through a telescope can tell us many of its important properties. The color of a star tells us its temperature, and the temperature depends on some combination of the star's mass and evolutionary phase. Usually, observations also allow us to find the luminosity of the star, or the rate at which it radiates energy as heat and light. \nAll stars visible to the unaided eye are in our galaxy, the Milky Way. The Milky Way is system of roughly 100 billion stars, along with a great deal of interstellar material. The galaxy is shaped like a flattened disk embedded in a round, faint halo. Gravity keeps the stars from drifting away, and the motions of the stars keep the system from falling in on itself. The Milky Way has no distinct edge - the distribution of stars tapers off gradually with increasing distance from the center. The SDSS detects stars more than a million times fainter than can be seen with the unaided eye, far enough to see the outer structure of the Milky Way. \nStar Colors and Luminosities: The H-R Diagram\nAstronomers often make plots of the luminosities of stars compared to their colors. The first such charts were made in the early twentieth century, when astronomers took spectra of thousands of stars, then placed the spectra into a sequence based on the appearance of several different features. The classes of stars were given different letters as names; in order of decreasing temperature, they are OBAFGKMLT. The hottest stars are class O, while the coolest are class T. Two astronomers, Ejnar Hertzsprung and Henry Norris Russell, independently started to wonder what would happen if they compared stars' luminosities to their spectral classifications (or, alternatively, to their temperatures). They knew that some stars were hotter and more luminous than the sun, and that others were cooler and less luminous. Hertzsprung and Russell found that 90% of the stars fell into a narrow band they termed the "main sequence." Today, we call this type of plot a Hertzsprung-Russell (or H-R) diagram. \nAstronomers further divide each letter into ten categories from 0 to 9, with 0 being the hottest star in that spectral class and 9 being the coolest. So, a B1 star is hotter than a B2 star, and a B9 star is hotter than an A0 star. Our own sun is at the "hot" end of the G range with a surface temperature of 5,770° K; therefore, it's called a G2 star. \nSpectral classes give us a convenient way to refer to most types of stars - from O0, the hottest at over 25,000° K, down to T9, the coolest failed stars at 1,000° K. Each spectral type of star is associated with a specific color: all G-type stars like the sun are yellow, all M-type stars appear red, and all B-type stars are bluish. Thus, this system of letters and numbers tells us where a star is on the horizontal (color or temperature) axis of the H-R diagram. \nTwo alternative systems tell us approximately where on the vertical (luminosity) axis a star can be found. One system uses absolute magnitude, a measure of luminosity derived from the apparent magnitude, or brightness of the star
1109557
1) You must first of all be aware that radio waves, light, infrared, x-rays, all these are electromagnetic radiation, only with different frequencies; they are pure energy, without mass, transmitted through space by photons at the speed of light. That is the fastest way of communication there can be in the universe, assuming that nothing travels faster than the speed of light.\n\n\n2) Radio waves were chosen from the electromagnetic spectrum because they include the Water Hole, which is the band of electromagnetic frequencies between 1420 MHz and 1640 MHz. This is the band between the hydrogen line and the strongest hydroxyl spectral line, and is notable because it is a quiet region between two notable frequencies; The combination of hydrogen and hydroxyl yields water (the "water" part of the name); the "hole" part refers to the sudden drop in radio noise (the universe background radiation) within this band. Several SETI programs, including SETI@home search in the Water Hole.\n\n\n3) It has been proposed that higher frequency signals, such as lasers operating at visible light frequencies, may prove to be a fruitful method of interstellar communication; at a given frequency it takes surprisingly small energy output for a laser emitter to outshine its local star from the perspective of its target.\n\nOther more exotic methods of communication have been proposed, such as modulated neutrino or gravitational wave emissions. These would have the advantage of being essentially immune to interference by intervening matter, but are very difficult to generate or detect with current technology.\n\nSending physical mail packets between stars may prove to be optimal for many applications. While mail packets would likely be limited to speeds far below that of electromagnetic or other light-speed signals (resulting in very high latency), the amount of information that could be encoded in only a few tons of physical matter could more than make up for it in terms of average bandwidth.Starting in 1979, Robert Freitas advanced arguments for the proposition that physical space-probes provide a superior mode of interstellar communication to radio signals, then undertook telescopic searches for such probes in 1979 and 1982.
747007
It's very name, Algol, comes from the Arabic Al Gol, or the ghoul.  One of it's common names is the Demon Star.  It is, indeed, an eclipsing binary, with a period (I believe) around 2.9 days.  There are actually two maxima and two minima.  The dimmest minima comes when the large very dim (to us) star very nearly eclipses the brighter of the pair, missing only a small portion of the bright one.  About 1.45 days later, when the small one eclipse the larger one, there is a small drop in the total light output.
1118898
gamma-ray burst\nn.\nA short-lived, localized, and intense burst of gamma radiation that originates outside the solar system from an unknown source.\n\ngamma ray burst \n \nOptical afterglow of gamma ray burst GRB-990123 (the bright dot within the white square and in the enlarged cutout) on 23 January 1999. The object above it with the finger-like filaments is its originating galaxy. This galaxy seems to be distorted by a collision with another galaxy.Gamma-ray bursts (GRBs) are the most luminous physical phenomena in the universe known to the field of astronomy. They consist of flashes of gamma rays that last from seconds to hours, and may be followed by several days of X-ray, ultra violet or optical afterglow. These flashes occur at apparently random positions in the sky about once per day. \n\nGRBs may be divided into two categories: short bursts (with a duration of less than 2 seconds) and long bursts (with a duration of more than two seconds). Short GRBs tend to emit a larger fraction of their energy as high energy photons (energy above ~100 keV) than low energy photons (it can be said that they have "harder" spectra than long bursts). \n\nThere is now almost universal agreement in the astrophysics community that the long-duration bursts (> 2 sec) are associated with the beamed energy from a specific kind of hypernova event, known as a collapsar. The death of supermassive stars once its silicon "burning" is complete with a Zero Age Main Sequence (ZAMS) mass between 40 and 100 solar masses causes a direct collapse of the core to a black hole (vs. a slower "fall back" collapse if the ZAMS mass is between 25 and 40 and no black hole creation at all in stars with a ZAMS mass between 100-250 solar masses due to the resultant pair-instability supernova leaving no core remnant at all). The close connection between GRB's and Type Ib/c supernovae shows that the progenitor stars are almost exclusively low metallicity (at ZAMS), fast rotating Wolf-Rayet stars. \n\nThe angular momentum of the fast rotating Wolf-Rayet star causes the collapsing object to form a spinning accretion torus around the rapidly rotating black hole (rather like water spiraling round a plug-hole). The rotation axis area (polar regions) is quickly cleared of gas such that just 10 seconds after the "burning" ended it has around a tenth of the density of the equatorial region, allowing the energy to be released in two jets along the rotation axis. If Earth happens to lie along the rotation axis, it receives a huge burst of gamma-rays. If the Earth does not lie along the rotation axis then an x-ray flash will be observed as the relativistic jet and attendant shock interacts with the material expelled earlier in a stellar wind by the progenitor star. \n\nThe most promising model for the short duration bursts (< 2 sec but typically averaging 0.3 sec) is that developed by Martin Rees in the 1990s. In this model two neutron stars coalesce or a neutron star is devoured by a black hole. This causes an enormous release of gravitational potential energy. The lack of material around such a system means that the energy release stops as soon as the merger is complete (hence the short duration of the burst). \n\nDiscovery\nCosmic gamma-ray bursts were discovered in the late 1960s by the US Vela nuclear test detection satellites. The Velas were built to detect the gamma-radiation pulses emitted by secret nuclear weapons tests on or under the surface of the Earth, but they picked up occasional bursts of gamma rays from unknown sources. In 1973 researchers at the US Los Alamos National Laboratory were able to use the data from the satellites to determine that the bursts came from deep space. \n\nGamma ray bursts can only be observed directly from space, as the atmosphere blocks most gamma rays. Astronomers believed that once better gamma-ray detectors were put in orbit, they would be able to quickly pin down the locations of the
92109
That wasn't a "Falling Star" you dummy. That was me The Green Goblin terror of the universe....\nBWAAAAAAAAHAHAHAHA
8576
I saw an interesting documentary on Nova about this.  There is a scientest that has some good proof that the tremendous energy required for lightening to strike actually comes from outside of our earth.  He came to this conclusion after finding that the energy produced by the seperation of + and - in a cloud was just not nearly enough to make the lightening happen.\n\nSo get this, his theory is that the extra energy comes from cosmic rays delivered by dying stars.  He has proved this by using equipment which detected X-Rays where thunder clouds are.
913046
upper left hand corner....icon looks ike a star
1160150
yeah in missouri. i was laying in a hammock and looking at the stars(not sleeping and not on drugs) when i saw a blue glow flying really low and really fast. as quick as it appeared it dissapeared. after about fifteen minutes it returned but this time it was flying increadably fast and then stopped in midflight only to hover about 200yards above where I was laying.  i watched it hover there for about 2-3 minutes.  it wasnt round like in the movies either to all you skeptics it was triangular in shape but instead of being straight lines they were concave.  the blue glow came out from the sides. there werent any windows that i could see. and no i didnt see any aliens. it hovered there above me for 2-3 minutes and then took off straight up into the sky until i couldnt see it any more. no one believed me when i went inside, but i know what i saw. has any one else seen an Ufo like this?