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222 items matching your criteria.

What causes the sun to vary? [1%] Last modified on September 24, 2009 04:09 PM: We live in the extended atmosphere of a magnetic variable star that drives our solar system and sustains life on Earth. Our Sun varies in every way we can ...
How do the Earth and Heliosphere respond? [1%] Last modified on September 24, 2009 04:09 PM: Our planet is immersed in this seemingly invisible yet exotic and inherently dangerous environment. Above the protective cocoon of Earth’s lower atmosphere is ...
What are the impacts on humanity? [1%] Last modified on September 24, 2009 04:09 PM: Modern society depends heavily on a variety of technologies that are susceptible to the extremes of space weather — severe disturbances of the upper atmosphere ...
How will the Earth system change in the future? [1%] Last modified on July 17, 2009 12:30 PM: As the world consumes ever more fossil fuel energy, greenhouse gas concentrations will continue to rise and Earth's average temperature will rise with them. ...
What are the consequences of change in the earth system for human civilization? [1%] Last modified on July 17, 2009 12:30 PM: Earth's climate system has been remarkably stable over the last 20,000 years or so. Human civilization developed in that time span, and our world's average ...
How does the earth system respond to natural and human-induced changes? [1%] Last modified on July 17, 2009 12:30 PM: Climate scientists have been monitoring Earth's energy budget since the 1978 launch of NASA's Nimbus-7 satellite. That mission carried a new instrument into ...
What are the primary forcings of the Earth system? [1%] Last modified on July 17, 2009 12:30 PM: The Sun is the primary forcing of Earth's climate system. Sunlight warms our world. Sunlight drives atmospheric and oceanic circulation patterns. Sunlight ...
How did life begin and evolve on Earth, and has it evolved elsewhere in the Solar System? [1%] Last modified on July 17, 2009 12:29 PM: Microbial life forms have been discovered on Earth that can survive and even thrive at extremes of high and low temperature and pressure, and in conditions of ...
How did the solar system evolve to its current diverse state? [1%] Last modified on July 17, 2009 12:29 PM: Many of the other solar systems have massive Jupiter like planets close to their Sun, closer even than Mercury. Many scientists now believe that these gas ...
How do planets, stars, galaxies and cosmic structure come into being? [1%] Last modified on July 17, 2009 12:28 PM: In order to understand how the Universe has changed from its initial simple state following the Big Bang (only cooling elementary particles like protons and ...
What are the origin, evolution and fate of the Universe? [1%] Last modified on July 17, 2009 12:28 PM: Two of the most profound questions that all cultures, both past and present, have asked are: where did we come from and what is our destiny? Throughout ...
Is there life elsewhere? [1%] Last modified on July 17, 2009 12:27 PM: Are we alone? This question is as old as humankind itself. For millennia, people have turned their eyes to the stars and wondered if there are others like ...
When and how did the elements of life in the Universe arise? [1%] Last modified on July 17, 2009 12:27 PM: Following the Big Bang and the gradual cooling of the Universe the primary constituents of the cosmos were the elements hydrogen and helium. Even today, these ...
How did the sun's family of planets and minor bodies originate? [1%] Last modified on July 16, 2009 06:35 PM: For the first time in human history we know of planets around other stars and many of those other planetary systems look quite different from our own. Many ...
TR&T [1%] Last modified on March 05, 2009 04:57 PM: Targeted Research & Technology
terrestrial [1%] Last modified on March 05, 2009 04:57 PM: Belonging to the class of planets that are like the earth (as in density and silicate composition) Click for citation
Temperature profilers [1%] Last modified on March 05, 2009 04:57 PM: Remote sensing devices that receives electromagnetic or acoustic waves transmitted through, emitted by, or reflected from the atmosphere in order to produce a ...
tectonics [1%] Last modified on March 05, 2009 04:57 PM: A branch of geology concerned with the structure of the crust of a planet (as earth) or moon and especially with the formation of folds and faults in it Click ...
Synoptic [1%] Last modified on March 05, 2009 04:57 PM: Relating to or displaying conditions as they exist simultaneously over a broad area. Click for citation
supernove [1%] Last modified on March 05, 2009 04:57 PM: The death explosion of a massive star whose core has completely burned out. Supernova explosions can temporarily outshine a galaxy. The outer layers are ...
Sunspots [1%] Last modified on March 05, 2009 04:57 PM: A region on the surface (photosphere) of the sun that is temporarily cool and dark compared to surrounding areas. Click for citation
subatomic [1%] Last modified on March 05, 2009 04:57 PM: Of, relating to, or being particles smaller than atoms. Click for citation
STEM [1%] Last modified on March 05, 2009 04:57 PM: Science, Technology, Engineering and Mathematics
Spectroradiometers [1%] Last modified on March 05, 2009 04:57 PM: A combination of a spectroscope and a _radiometer in one single unit. Click for citation
spatial [1%] Last modified on March 05, 2009 04:57 PM: Relating to, occupying, or having the character of space Click for citation
Sounders [1%] Last modified on March 05, 2009 04:57 PM: Instruments that acquire multispectral measurements from which vertical profiles of atmospheric temperature and humidity can be derived and does particular ...
SOMD [1%] Last modified on March 05, 2009 04:57 PM: Space Operations Mission Directorate (NASA)
Solid State Radar Altimeter [1%] Last modified on March 05, 2009 04:57 PM: Was an experimental instrument designed by CNES and intended to validate the accuracy, operation, and signal processing of a small-volume, lightweight, ...
solar wind [1%] Last modified on March 05, 2009 04:57 PM: Plasma continuously ejected from the sun's surface into and through interplanetary space Click for citation
Solar UV Spectrometers [1%] Last modified on March 05, 2009 04:57 PM: Devices that are onboard the Solar Mesosphere Explorer (SME) and measure ultraviolet radiation in the spectral range of 115.5 to 302.5 nm. Daily averages of ...

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