Having marked its first anniversary on orbit, NASAs Solar Radiation and Climate Experiment (SORCE) satellite has hit its stride. In concert with other satellites, SORCEs observations of the suns brightness are helping researchers better understand climate change, climate prediction, atmospheric ozone, the sunburn-causing ultraviolet-B radiation and space weather.
SORCE maintains a 24-year legacy of solar output monitoring that should help explain and predict the effect of the Sun on the Earths atmosphere and climate. Credit: NASA / LASP
In fall 2003, SORCE was fortunate to see and measure exceptionally high levels of the suns activities. In late October and November the sun sent solar flares and coronal mass ejections hurtling Earthward, disrupting satellites and other transmissions, triggering an intense geomagnetic storm, and enabling sightings of the northern lights as far south as Arkansas, Texas and Oklahoma.
The third most powerful solar flare ever observed in X-rays, high-energy photons with very short wavelengths, erupted from Sunspot 486 October 28, 2003, at approximately 6 a.m. Eastern Standard Time. The same spot released a large X11 flare on the afternoon of October 29. As the sunspot moved across the face of the sun, total solar brightness decreased by 0.3 percent.
Lynn Chandler | GSFC
Mineral discoveries in the Galapagos Islands pose a puzzle as to their formation and origin
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Massive organism is crashing on our watch
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Scientists at the Max Planck Institute for Polymer Research (MPI-P) in Mainz (Germany) together with scientists from Dresden, Leipzig, Sofia (Bulgaria) and Madrid (Spain) have now developed and characterized a novel, metal-organic material which displays electrical properties mimicking those of highly crystalline silicon. The material which can easily be fabricated at room temperature could serve as a replacement for expensive conventional inorganic materials used in optoelectronics.
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Augsburg chemists present a new technology for compressing, storing and transporting highly volatile gases in porous frameworks/New prospects for gas-powered vehicles
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When we put water in a freezer, water molecules crystallize and form ice. This change from one phase of matter to another is called a phase transition. While this transition, and countless others that occur in nature, typically takes place at the same fixed conditions, such as the freezing point, one can ask how it can be influenced in a controlled way.
We are all familiar with such control of the freezing transition, as it is an essential ingredient in the art of making a sorbet or a slushy. To make a cold...
Thin organic layers provide machines and equipment with new functions. They enable, for example, tiny energy recuperators. In future, these will be installed...
Das Zusammenspiel aus Struktur und Dynamik bestimmt die Funktion von Proteinen, den molekularen Werkzeugen der Zelle. Durch Fortschritte in der...
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19.10.2018 | Physics and Astronomy