Where is the earths strongest magnetic field,new american war film pakistani,norfolk emergency preparedness and response headers - For Begninners

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Please fill out the form below and tell us why you're bringing this poster to our attention. An artist's conception shows a gas-giant planet orbiting very close to its parent star, creating searingly hot conditions on the planet's surface. Earth's inhabitants are used to temperatures that vary, sometimes greatly, between day and night.
The reason apparently is supersonic winds, perhaps as strong as 9,000 miles an hour, that constantly churn the planets' atmospheres and keep temperatures on the dark side from plunging. The planets, gas giants similar in size to Jupiter, were discovered in the last decade orbiting stars about the same size as our sun and less than 150 light years from Earth. Astronomers have wondered whether planets orbiting so close to their stars but with one side in constant daylight and the other permanently dark would exhibit sharp temperature differences between the day side and the night side. Agol and colleagues Nicolas Cowan, a UW astronomy doctoral student and lead author of the poster, and David Charbonneau of the Harvard-Smithsonian Center for Astrophysics measured infrared light from each of the planetary systems at eight different positions in their orbits in late 2005. Instead the planets appear to have a fairly uniform temperature of about 925 degrees Celsius, or about 1700 degrees Fahrenheit.
Measuring the planets' temperatures is a painstaking process because a planet's radiation is drowned out by the light from its host star.
The three planets are 51 Pegasi, about 50 light years from our sun, HD179949b about 100 light years distant, and HD209458b about 147 light years away.
Agol noted that the planets probably have the same side always facing the star because they are so close to their parent stars. In 2011, astronomers announced that our galaxy is likely teeming with free-floating planets.


In the last two decades, humanity has discovered thousands of extrasolar planetary systems. British astronaut Tim Peake ran a marathon in space in record time on Sunday, strapped into a treadmill on the International Space Station as thousands ran the London Marathon below.
ESA's Herschel mission releases today a series of unprecedented maps of star-forming hubs in the plane of our Milky Way galaxy.
For the 26th birthday of NASA's Hubble Space Telescope, astronomers are highlighting a Hubble image of an enormous bubble being blown into space by a super-hot, massive star. Returns & Refund Guarantee details Buyers can receive a refund and keep the item(s) once the item(s) are not as described or possess any quality issues by negotiating directly with the seller.
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Click through to see more designs, create your own, share designs and purchase customised products. New research suggests that for three such planets lying from 50 to 150 light-years from Earth, strong winds thousands of miles per hour mix the atmosphere so that the temperature is relatively uniform from the permanently light side to the permanently dark side. New measurements for three planets outside our solar system indicate their temperatures remain fairly constant a€“ and blazing hot a€“ from day to night, even though it is likely one side of each planet always faces its sun and the other is in permanent darkness. All of them orbit within about 5 million miles of their stars, far less than Mercury's distance from our sun. For the three planets in this study, the temperatures appear to be constant, likely because of the strong winds that mix the atmosphere planetwide, said Eric Agol, a University of Washington assistant professor of astronomy and co-author of a poster presenting the findings today at the American Astronomical Society national meeting in Seattle. They measured the thermal brightness of the systems when the planets' day sides faced the Earth, when the night sides faced the Earth and at various phases in between.
Even when a planet goes behind the parent star and disappears completely from view, the decline in light from the entire system is almost imperceptible, on the order of 0.25 percent, Agol said.


The effect is the same as the Earth has on the moon, which has had its rotation slowed so much by Earth's gravity that the same side always faces Earth.
Tending fire is a species trait, a capacity we alone possess a€“ and one we are not likely to tolerate willingly in any other species.
It sounds more like a question posed in an episode of "Star Trek" than in academic discourse, but sometimes the bleeding edge of science blurs with themes found in science fiction. Then, open the DHgate APP, and click on "Shopping Cart" or "My favorites" to find the product(s) you added. This illustration represents an infrared view of a planetary system, in which brightness indicates warmer temperatures. They detected no infrared brightness variations in any of the systems, suggesting there are not big differences in temperatures on the day and night sides.
For example, the bright band around the equator of the planet denotes warmer temperatures on both the dark and sunlit sides.
Since then numerous planets a€“ gas giants the mass of Jupiter or larger a€“ have been observed from Earth. A common theory is that they formed far away from their stars, perhaps in about the same position as Jupiter is to our sun, and then migrated close to their stars.



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