Category Archives: Helioseismology

Space Weather Now

2012-09-03 15:14 UTC  G2 (Moderate) Geomagnetic Storm in Progress G2 (Moderate) geomagnetic storming is ongoing now as a result of the coronal mass ejection (CME) arrival associated with the August 31st filament eruption.  Continued geomagnetic storming is expected in the near term … Continue reading

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Radiation Belt Storms Probes Launched

 NASA hosted a two-day event for 50 social media followers on August 22-23, 2012, at NASA’s Kennedy Space Center in Florida. NASA’s twin Radiation Belt Storm Probes (RBSP) are scheduled to lift off aboard a United Launch Alliance Atlas V … Continue reading

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Radiation Belt Storm Probes (RBSP)

The launch of an Atlas V carrying NASA’s Radiation Belt Storm Probes (RBSP) payload was scrubbed today due to weather conditions associated with lightning, as well as cumulus and anvil clouds. With the unfavorable weather forecast as a result of … Continue reading

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Songs of the Stars: the Real Music of the Spheres

With the discovery of sound waves in the CMB, we have entered a new era of precision cosmology in which we can begin to talk with certainty about the origin of structure and the content of matter and energy in … Continue reading

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Comet LoveJoy

Comet Lovejoy seen by SOHO “On average, new Kreutz-group comets are discovered every few days by SOHO, but from the ground they are much rarer to see or discover,” says Karl Battams, Naval Research Laboratory, who curates the Sun-grazing comets … Continue reading

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Space Weather: Wind in Space

An X1.9 Flare at 2011 Nov 03 2027 UT!   Full SDO cadence (12 sec) movie of the M2.5 flare and associated CME from June 7,2011; composite of AIA wavelengths 211 (red channel), 193 (green), and 171 (blue); 05:00–13:00UTC; 2400 … Continue reading

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Solar Weather

Sunspot 1283 Bristling With Flares: An X1.8 and An M6.7 – UPDATED 09.08.11   The Sun as viewed by the Solar Dynamics Observatory (SDO) in 193 angstrom. The verticle black area near the center is the coronal hole. Credit: NASA/SDO … Continue reading

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Solar Dynamics Observatory Pick of the Week

(Click on Image for Larger Veiwing) Then and Now A side-by-side comparison of the Sun from precisely two years ago (left, from SOHO) to the present (right, from Solar Dynamics Observatory) dramatically illustrates just how active the Sun has become … Continue reading

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Concepts Fade to Moments

Relativity, by M. C. Escher. Lithograph, 1953. Source: Official M.C. Escher website. Of course I struggle “with” as to be free and in liberation of, as if to liberate oneself from all the constraints that we have applied to our … Continue reading

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Solar Dynamics Observatory

SpaceCraft The total mass of SDO at launch was 3000 kg (6620 lb); instruments 300 kg (660 lb), spacecraft 1300 kg (2870 lb), and fuel 1400 kg (3090 lb). Its overall length along the sun-pointing axis is 4.5 m, and … Continue reading

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