Results 371 to 380 of about 1,069,805 (400)
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Nature, 2007
Of the over 200 known extrasolar planets, just 14 pass in front of and behind their parent stars as seen from Earth. This fortuitous geometry allows direct determination of many planetary properties. Previous reports of planetary thermal emission give fluxes that are roughly consistent with predictions based on thermal equilibrium with the planets ...
L. Jeremy Richardson +6 more
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Of the over 200 known extrasolar planets, just 14 pass in front of and behind their parent stars as seen from Earth. This fortuitous geometry allows direct determination of many planetary properties. Previous reports of planetary thermal emission give fluxes that are roughly consistent with predictions based on thermal equilibrium with the planets ...
L. Jeremy Richardson +6 more
openaire +3 more sources
, 2004
The megacities arising around the planet are like the Internet where many events are taking place simultaneously. The urban scape today is becoming more a space of flows—migrants, trade, capital, information, microbes—than a space of places rooted in an ...
M. Davis
semanticscholar +1 more source
The megacities arising around the planet are like the Internet where many events are taking place simultaneously. The urban scape today is becoming more a space of flows—migrants, trade, capital, information, microbes—than a space of places rooted in an ...
M. Davis
semanticscholar +1 more source
Fundamental Planetary Science, 2019
Licensed under the Apache License, Version 2.0 (the " License "); you may not use this file except in compliance with the License. You may obtain a copy of the License at http://www.apache.org/licenses/ LICENSE-2.0.
David Spergel
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Licensed under the Apache License, Version 2.0 (the " License "); you may not use this file except in compliance with the License. You may obtain a copy of the License at http://www.apache.org/licenses/ LICENSE-2.0.
David Spergel
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Nature, 2006
Further observations of an object dubbed 2003 UB313, which lies beyond Neptune, show that its diameter is around 3,100 kilometres. This makes it larger than Pluto, the smallest ‘traditional’ Solar System planet. The discovery of the trans-neptunian object 2003 UB313 in July 2005 has rekindled the debate over which objects should be called planets ...
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Further observations of an object dubbed 2003 UB313, which lies beyond Neptune, show that its diameter is around 3,100 kilometres. This makes it larger than Pluto, the smallest ‘traditional’ Solar System planet. The discovery of the trans-neptunian object 2003 UB313 in July 2005 has rekindled the debate over which objects should be called planets ...
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A giant planet undergoing extreme-ultraviolet irradiation by its hot massive-star host
Nature, 2017The amount of ultraviolet irradiation and ablation experienced by a planet depends strongly on the temperature of its host star. Of the thousands of extrasolar planets now known, only six have been found that transit hot, A-type stars (with temperatures ...
S. Gaudi +59 more
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Science, 2001
Cool objects found in young star clusters in Orion and Perseus, such as those reported by M. R. Zapatero Osorio and colleagues in their research article (6 Oct., p. 103), have been described variously as “planetary mass objects,” “isolated giant planets,” “free-floating planets,” and “superplanets” (1).
McCaughrean, Mark +7 more
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Cool objects found in young star clusters in Orion and Perseus, such as those reported by M. R. Zapatero Osorio and colleagues in their research article (6 Oct., p. 103), have been described variously as “planetary mass objects,” “isolated giant planets,” “free-floating planets,” and “superplanets” (1).
McCaughrean, Mark +7 more
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Reducing obesity via a school-based interdisciplinary intervention among youth: Planet Health.
Archives of Pediatrics & Adolescent Medicine, 1999OBJECTIVE To evaluate the impact of a school-based health behavior intervention known as Planet Health on obesity among boys and girls in grades 6 to 8. DESIGN Randomized, controlled field trial with 5 intervention and 5 control schools.
S. Gortmaker +6 more
semanticscholar +1 more source
planet planet gravitational scattering
2010In planetary systems populated by two or more giant planets, planet--planet scattering can lead to collisions and ejections of one or more bodies. The original planetary configuration can be significantly altered by this kind of dynamical evolution and the presently observed system would be very different from the original outcome of the planet ...
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Water on Planets and Dwarf Planets
2011The classification of objects in the solar system is reviewed. It is outlined that the terrestrial planets, especially Venus, Earth and Mars might have a wet environment during the early evolution of the solar system but in the case for Venus nearly all the water evaporated, and due to climate change, also Mars became a dry planet.
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Journal of Chinese Philosophy, 2013
Our planet is sick and perhaps on a tipping point of extinction. The causes are well known—global warming, the collapse of the world economy, human greed, and thermonuclear war—to name but a few agents at work in the contemporary world. America and China hold the world’s destiny in their grip. How they will interact is unknown.
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Our planet is sick and perhaps on a tipping point of extinction. The causes are well known—global warming, the collapse of the world economy, human greed, and thermonuclear war—to name but a few agents at work in the contemporary world. America and China hold the world’s destiny in their grip. How they will interact is unknown.
openaire +2 more sources