| They are produced in the atmosphere by the interaction of galactic cosmic rays with the atoms of the atmosphere. |
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| But even shielding does little good against so-called galactic cosmic radiation, which originates in deep space. |
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| The cyclical nature of our weather changes point to the variables in our solar system and even galactic variations. |
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| They'll also be searching for storms on Mars and Jupiter, monitoring active galactic nuclei, and measuring variable stars. |
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| In fact, the Sun is at an optimal distance from the galactic centre, called the co-rotation radius. |
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| The galactic dust and gas fall into the black hole's accretion disk producing some very hot regions where huge quantities of energy are released. |
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| A record of the long term variations of the galactic cosmic ray flux can be extracted from Iron meteorites. |
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| But suppose that as time goes on, all the black holes in a given galaxy eventually fall into a central black hole at the galactic center. |
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| Arp's evidence for galaxy formation by ejection of quasars from the centres of active galactic nuclei is extremely compelling. |
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| He thus moved the universe from a Copernican Sun-centered system to a Sun located far from the galactic center in one of the spiral arms. |
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| If accurate, this new view of galactic demography might force astronomers to rethink the fundamentals of galaxy formation. |
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| A more exotic model posits the existence of small black holes not far from the supermassive one at the galactic center. |
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| As charged particles, cosmic rays are deflected by galactic and intergalactic magnetic fields during their travel to Earth. |
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| Chown's delivery is punchy, conversational and well-stocked with reader-friendly analogies keeping galactic concepts at an everyday level. |
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| The Earth sits in a stream of accelerated particles coming in from the Sun, interstellar material, and galactic sources. |
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| Our bodies are made from interstellar dust which is the remains of ancient dead stars, cosmic debris and galactic particles. |
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| Why, given its exceedingly smooth beginnings, is the universe so clumpy, on all scales from galaxies to galactic superclusters? |
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| By contrast, to reach our nearest galactic neighbor, the Andromeda galaxy, you'd need only twenty-five Milky Ways. |
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| However, there are larger explosions, notably those that go on in the middle of active galactic nucleii, like quasars. |
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| They are weaker than cosmic and galactic rays, and tend to get buffeted around like clouds of manic dandelion spores on the solar wind. |
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| The rishis tell us of the galactic center of the universe, which feeds energy to all the galaxies and solar systems of the universe. |
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| The space radiation environment encompasses a broad spectrum of radiation ranging from infra-red to galactic cosmic radiation. |
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| The planet orbits the M class red dwarf star Gliese 436, located only 33 light years away, in our own galactic neighborhood. |
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| I feel as though I am witnessing a parody of galactic evolution, atramental spiral arms drawing close, knotting into the cores. |
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| Marcellus was struck down sick and incapacitated when a galactic storm struck the outer planets, creating destruction and havoc. |
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| At the Earth's surface, the atmosphere acts as an extra blanket to stop all but the most energetic of the solar and galactic radiation. |
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| Physicists and astronomers set about trying to identify this imprint in maps of our own galactic neighbourhood. |
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| The first magnetar candidates were a family of rare and peculiar galactic sources of gamma and X-rays called soft gamma repeaters. |
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| With a galactic reputation for being butchers, and ravenous executioners, the Rangers weren't known for leaving anyone alive after an operation. |
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| The windows around wink and flash in cryptograms, a galactic console of messages coded in light, in diamonds and topazes and amber. |
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| The galactic horribleness of this movie can be summed up in one scene, where our gymnast hero is being pursued by bad guys through a suitably Eastern European looking village. |
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| Violent events such as stellar flares, supernovae and the explosion of galactic nuclei produce a concoction of subatomic particles, primarily protons and electrons. |
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| Performing and publicizing a one-time achievement may initially burn bright, but often, like a galactic super nova, burn out just as quickly. |
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| In this discussion, scientists often use the abbreviation G. C. R. for galactic cosmic ray. |
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| Amid the wheeling galactic systems, the countless worlds like dust clouds and the whole engulfing vortex, do we have any significance? |
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| Eventually, the supply of these clouds will run out, and with it the elixir of galactic life. |
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| In the past year 40m classifications of galaxies have been submitted on 1m galactic objects in the Galaxy Zoo. |
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| Bars are density waves which develop spontaneously in a galactic disc subject to its own gravitation. |
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| The origin and importance of radial mixing of stars in the galactic thin disk are uncertain. |
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| Particles from the sun generally have much lower energy than their galactic counterparts. |
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| Neither is this to be explained solely by some melodic sensitivity that should lure the senses, as some galactic merdmaid would. |
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| The galactic centre of our galaxy is one of Integral's prime targets. |
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| These are charged particles travelling through space that are constrained to travel along the galactic and heliospheric magnetic field lines, like on rails. |
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| In fact, all the stars are moving, in orbit around the galactic center and also shifting relative to each other with their own peculiar velocity components. |
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| Astronomers say that the galactic light has been redshifted. |
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| With that task accomplished, the Sami team can get to work on the task of galactic demographics in earnest. |
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| Most stars in the Milky Way have humdrum lives, tracing slow predictable orbits around the galactic center. |
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| From that perch, one's picture of the cosmos grows to galactic proportions, dwarfing any prior world view and yielding a perspective transcendent beyond imagination. |
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| One of the emerging branches of research focused on the galactic and solar origins of cosmic rays and the modulation of their flux by the interplanetary magnetic field. |
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| Our Milky Way galaxy is gobbling up its galactic neighbor, Sagittarius, and scientists this week offered documentary proof of this continuing cosmic cannibalism. |
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| The second are galactic cosmic rays, which, although not as lethal as solar flares, represent a continuous background radiation to which the crew would be exposed. |
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| Other sources that contribute to the near-Earth space environment include galactic cosmic ray particles, which originate from outside of the solar system. |
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| The galactic centre can only be observed at certain wavelengths, such as X-rays, because large amounts of dust lie in our line of sight and this blocks out optical light. |
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| A coil of a superconducting material could produce a substantial magnetic field, which could, in turn, deflect the energetic galactic cosmic radiation. |
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| It was possibly the most important observation but it was just personal observation to sample the glory and the majesty of the galactic plain and the centre of the galaxy. |
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| They compared the observed shape in space of 160,000 galaxies to models of galactic distribution that incorporated various masses for the neutrino. |
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| Out past Fomalhaut, toward the south galactic pole, the stars fade. |
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| Its last assignment was to find the heliopause, where the solar wind is offset by the galactic wind, but in April 1997 it was passed by a younger, faster Voyager spacecraft. |
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| The video shows the Sun between December 22 and December 27, 1996 featuring a sun-grazing comet, a coronal mass ejection, and the Sun moving in front of the galactic center. |
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| Gripping storyline that enables you, playing super-soldier Jacob Taylor, to prevent galactic chaos! |
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| The shock fronts of supernovae, observed in their shell-like remnants are generally believed to be the principal accelerators of galactic cosmic rays. |
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| All these characteristics suggest that the issue of the deep X to low energy both of galactic origin, produced within some hundred parsec by the Sun. |
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| The figure also includes a curve for galactic noise. |
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| Like Luke Skywalker in the original assault on the Death Star, you'll also discover that even a lone starship can change the course of galactic history. |
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| The first galactic test for possible variations in a fundamental constant of nature has found no evidence for change. |
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| That's a stone's throw, practically our galactic backyard. |
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| Spectra of the galactic light indicate that faint red dwarfs account for 80 percent of stars in elliptical galaxies. |
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| Planets orbit stars, stars orbit galactic centers, galaxies orbit a center of mass in clusters, and clusters orbit in superclusters. |
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| In particular, active galactic nuclei and quasars are believed to be the accretion discs of supermassive black holes. |
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| It alone could survey the full sweep of galactic history and experience the development of knowledge on a panstellar scale. |
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| A wide variety of objects are observable at radio wavelengths, including supernovae, interstellar gas, pulsars, and active galactic nuclei. |
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| Other objects commonly observed in ultraviolet light include planetary nebulae, supernova remnants, and active galactic nuclei. |
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| Elliptical galaxies are more commonly found at the core of galactic clusters, and may have been formed through mergers of large galaxies. |
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| At a distance of only 13 million light-years, the Circinus Galaxy contains one of the closest and brightest active galactic nuclei. |
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| Other such measurements gleaned are occurrences of galactic winds. |
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| Add to that the multitude of magnetic solar and galactic fields in which the system is bathed and you have all the ingredients for a self-perpetuating dynamo. |
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| Or will you end up as part of the menu in a galactic chicken restaurant? |
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| Coauthor of a paper on the galactic distribution of pulsars. |
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| T associations occur only in or near regions of galactic nebulosity, either bright or dark, and only in obscured regions showing the presence of dust. |
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| I believe this story about Venus and Mars is a galactic misunderstanding. |
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| The present average galactic radius of 40, 000 light years is within the range of dwarf galaxies and large galaxies. |
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| The maps show that the local cavity goes through the galactic disk from one end to the other and is extended by two wide tunnels that link it to the galactic corona on the north and south sides. |
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| You should vote for them if: You don't value life and secretly want to spend your dying moments writhing around in agony as your body is consumed by a fiery galactic orb. |
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| Only when an unlucky star approaches too close and gets shredded by the black hole's powerful tidal forces does the galactic center emit a bright flare of light. |
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| This sounds like one of those cheesy space operas in which a galactic emperor with trillions of subjects somehow manages to micromanage their lives directly. |
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| This animation zooms into an image of the Milky Way, shown in visible light, and superimposes a gamma-ray map of the galactic center from NASA's Fermi. |
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| The observations, reported online September 27 in Science, may help explain how some active galactic nuclei launch powerful plasma jets thousands of light-years into space. |
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| Johnson, whose field of study is active galactic nuclei, hopes to create an environment for prospective scientists that is every bit as stimulating as his own. |
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| Jacobus Kapteyn discovered the star at the end of the 19th century belonging to the galactic halo and it is the second fastest moving star in the sky. |
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| It lies in a sphere above the Milky Way known as the galactic halo. |
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| Its orbit carries it down through the plane of our galaxy from the ancient halo of stars that encircle the Milky Way, and will eventually slingshot back to the galactic halo. |
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| Aimed at astronomy and physics majors, it offers thorough coverage of galactic structure and evolution, active galaxies, cosmology, and the history of the universe. |
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| Reports from star surveys update the search for Wolf-Rayet stars, O stars, galactic star clusters, massive star nebulae, and luminous blue variable stars. |
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| The discovery of the new galactic cloud, which is about 15,000 light-years from Earth, will help determine how these mysterious objects develop in the interstellar medium. |
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| The main purpose of the herein study is to provide a method to build galactic density profiles which requires the conversion of light travel distances to Euclidean distances. |
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| The events of Isaac Asimov's Foundation Trilogy take place during the galactic interregnum in his Foundation Universe, taking place in the 25th millennium. |
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| Our rationale was to slice a galactic survey into small redshift buckets. |
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