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Power Beaming
Power Beaming
09/17/03
NASA
 
Year 2003
Power Beaming
Power Beaming
09/18/03
NASA
 
Year 2003
Power Beaming
Power Beaming
09/18/03
NASA
 
Year 2003
Power Beaming
Power Beaming
09/17/03
NASA
 
Year 2003
Power Beaming
Power Beaming
10/01/02
NASA
 
Year 2002
Power Beaming
Power Beaming
10/01/02
NASA
 
Year 2002
Power Beaming
Power Beaming
10/02/02
NASA
 
Year 2002
Power Beaming
Power Beaming
08/01/02
NASA
 
Year 2002
Power Beaming
Power Beaming
08/01/02
NASA
 
Year 2002
Power Beaming
Power Beaming
08/01/02
NASA
 
Year 2002
NASA/JPL-Caltech
 
NASA/JPL-Caltech
 
NASA/JPL-Caltech
 
NASA/JPL-Caltech
 
L-Band West Texas
L-Band West Texas
6/22/95
NASA/JPL-Caltech
 
Year 1995
NSCAT/ADEOS
NSCAT/ADEOS
8/13/96
NASA/JPL-Caltech
 
Year 1996
Space Sail Concept
Space Sail Concept
7/5/00
NASA/JPL-Caltech
 
Year 2000
Titan (T30) Viewed by Cassini's Radar -- May 12, 2007
Titan (T30) Viewed by C...
Titan (T30) Viewed by C...
August 13, 2007
 
Media Type Image
Huygens probe jettison
 
Media Type Image
Titan's Land-o-Lakes
Titan's Land-o-Lakes
The Cassini spacecraft'...
May 8, 2006
 
Media Type Image
Ion Beam
Ion Beam
Image
09.15.1959
 
Shuttle Test Using Electron Beam
Shuttle Test Using Elec...
Space Shuttle
04/14/1975
 
NASA Center Langley Research Center
Ion Beam
Ion Beam
Rocket Propulsion
09/15/1959
GRC
 
NASA Center Glenn Research Center
Goldstone Deep Space Communication Complex
Goldstone Deep Space Co...
Space Probes
01/01/1990
NASA
 
NASA Center Jet Propulsion Laboratory
Launch Preparation
Launch Preparation
Space Probes
01/01/1976
NASA
 
NASA Center Goddard Space Flight Center
SOLAR FLARE LEAVES SUN QUAKING Scientists have shown for the first time that solar flares produce seismic waves in the Sun's interior that closely resemble those created by earthquakes on our planet. The researchers observed a flare-generated solar quake that contained about 40,000 times the energy released in the great earthquake that devastated San Francisco in 1906. The amount of energy released was enough to power the United States for 20 years at its current level of consumption, and was equivalent to an 11.3 magnitude earthquake, scientists calculated. Dr. Alexander G. Kosovichev, a senior research scientist from Stanford University, and Dr. Valentina V. Zharkova from Glasgow (United Kingdom) University found the tell-tale seismic signature in data on the Sun's surface collected by the Michelson Doppler Imager onboard the Solar and Heliospheric Observatory (SOHO) spacecraft immediately following a moderate-sized flare on July 9, 1996. "Although the flare was a moderate one, it still released an immense amount of energy," said Dr. Craig Deforest, a researcher with the SOHO project. "The energy released is equal to completely covering the Earth's continents with a yard of dynamite and detonating it all at once." SOHO is a joint project of the European Space Agency and NASA. The finding is reported in the May 28 issue of the journal Nature, and is the subject of a press conference at the spring meeting of the American Geophysical Union in Boston, Mass., May 27. The solar quake that the science team recorded looks much like ripples spreading from a rock dropped into a pool of water. But over the course of an hour, the solar waves traveled for a distance equal to 10 Earth diameters before fading into the fiery background of the Sun's photosphere. Unlike water ripples that travel outward at a constant velocity, the solar waves accelerated from an initial speed of 22,000 miles per hour to a maximum of 250,000 miles per hour before disappearing. "People have looked for evidence of seismic waves from flares before, but they didn't have a theory so they didn't know where to look," says Kosovichev. Several years ago Kosovichev and Zharkova developed a theory that can explain how a flare, which explodes in space above the Sun's surface, can generate a major seismic wave in the Sun's interior. According to the currently accepted model of solar flares, the primary explosion creates high-energy electrons (electrically charged subatomic particles). These are funneled down into a magnetic flux tube, an invisible tube of magnetic energy, and produce X-rays, microwaves and a shock wave that heats the solar surface. Kosovichev and Zharkova developed a theory that predicts the nature and magnitude of the shock waves that this beam of energetic electrons should create when they slam down into the solar atmosphere. Although their theory directed them to the right area to search for the seismic waves, the waves that they found were 10 times stronger than they had
SOLAR FLARE LEAVES SUN ...
Image
 
Description SOLAR FLARE LEAVES SUN QUAKING Scientists have shown for the first time that solar flares produce seismic waves in the Sun's interior that closely resemble those created by earthquakes on our planet. The researchers observed a flare-generated solar quake that contained about 40,000 times the energy released in the great earthquake that devastated San Francisco in 1906. The amount of energy released was enough to power the United States for 20 years at its current level of consumption, and was equivalent to an 11.3 magnitude earthquake, scientists calculated. Dr. Alexander G. Kosovichev, a senior research scientist from Stanford University, and Dr. Valentina V. Zharkova from Glasgow (United Kingdom) University found the tell-tale seismic signature in data on the Sun's surface collected by the Michelson Doppler Imager onboard the Solar and Heliospheric Observatory (SOHO) spacecraft immediately following a moderate-sized flare on July 9, 1996. "Although the flare was a moderate one, it still released an immense amount of energy," said Dr. Craig Deforest, a researcher with the SOHO project. "The energy released is equal to completely covering the Earth's continents with a yard of dynamite and detonating it all at once." SOHO is a joint project of the European Space Agency and NASA. The finding is reported in the May 28 issue of the journal Nature, and is the subject of a press conference at the spring meeting of the American Geophysical Union in Boston, Mass., May 27. The solar quake that the science team recorded looks much like ripples spreading from a rock dropped into a pool of water. But over the course of an hour, the solar waves traveled for a distance equal to 10 Earth diameters before fading into the fiery background of the Sun's photosphere. Unlike water ripples that travel outward at a constant velocity, the solar waves accelerated from an initial speed of 22,000 miles per hour to a maximum of 250,000 miles per hour before disappearing. "People have looked for evidence of seismic waves from flares before, but they didn't have a theory so they didn't know where to look," says Kosovichev. Several years ago Kosovichev and Zharkova developed a theory that can explain how a flare, which explodes in space above the Sun's surface, can generate a major seismic wave in the Sun's interior. According to the currently accepted model of solar flares, the primary explosion creates high-energy electrons (electrically charged subatomic particles). These are funneled down into a magnetic flux tube, an invisible tube of magnetic energy, and produce X-rays, microwaves and a shock wave that heats the solar surface. Kosovichev and Zharkova developed a theory that predicts the nature and magnitude of the shock waves that this beam of energetic electrons should create when they slam down into the solar atmosphere. Although their theory directed them to the right area to search for the seismic waves, the waves that they found were 10 times stronger than they had
AC89-0013-6
AC89-0013-6
1/6/89
NASA/Ames Research Cent...
 
Year 1989
AC85-0186-16
AC85-0186-16
3/12/85
NASA/Ames Research Cent...
 
Year 1985
First ESA Faint Object Camera Science Images The Radio Galaxy PKS 0521-36
First ESA Faint Object ...
PKS 0521-36
2008-02-15 0:0:0
 
NASA's Hubble Space Telescope Discovers Protoplanetary Disks Around Newly Formed Stars
NASA's Hubble Space Tel...
Orion Nebula
2008-02-15 0:0:0
 
NASA's Hubble Space Telescope Resolves a Dark "x" Across the Nucleus of M51
NASA's Hubble Space Tel...
M51
2008-02-15 0:0:0
 
Hubble Sees Gas Shell Around Nova Cygni 1992
Hubble Sees Gas Shell A...
Nova Cygni 1992
2008-02-15 0:0:0
 
HST Reveals the Central Region of an Active Galaxy
HST Reveals the Central...
NGC 1068
2008-02-15 0:0:0
 
Hubble Finds Mysterious Ring Structure around Supernova 1987a
Hubble Finds Mysterious...
SN 1987A
2008-02-15 0:0:0
 
Hubble Observes the Fire and Fury of a Stellar Birth
Hubble Observes the Fir...
HH-30
2008-02-14 0:0:0
 
Hubble Finds a New Black Hole - and Unexpected New Mysteries
Hubble Finds a New Blac...
NGC 4261
2008-02-15 0:0:0
 
Hubble Finds an Hourglass Nebula around a Dying Star
Hubble Finds an Hourgla...
MyCn18
2008-02-14 0:0:0
 
Hubble Finds Searchlight Beams and Multiple Arcs around a Dying Star
Hubble Finds Searchligh...
CRL2688
2008-02-14 0:0:0
 
Hubble Goes to the Limit In Search Of Farthest Galaxies
Hubble Goes to the Limi...
2008-02-15 0:0:0
 
Very Long Baseline Array Reveals Formation Region of Giant Cosmic Jet Near a Black Hole
Very Long Baseline Arra...
2008-02-15 0:0:0
 
Very Long Baseline Array Reveals Formation Region of Giant Cosmic Jet Near a Black Hole
Very Long Baseline Arra...
2008-02-14 0:0:0
 
Very Long Baseline Array Reveals Formation Region of Giant Cosmic Jet Near a Black Hole
Very Long Baseline Arra...
M87
2008-02-14 0:0:0
 
Lost and Found: Hubble Finds Much of the Universe's Missing Hydrogen
Lost and Found: Hubble ...
2008-02-14 0:0:0
 
Lost and Found: Hubble Finds Much of the Universe's Missing Hydrogen
Lost and Found: Hubble ...
2008-02-14 0:0:0
 
Illustration of Collidi...
 
Body Imaging
Body Imaging
2001-09-01
 
Body Imaging
Body Imaging
2001-09-01
 
Body Imaging
Body Imaging
2001-09-01
 
Body Imaging
Body Imaging
2001-01-01
 
Gravity Probe B Detector Mount Assembly
Gravity Probe B Detecto...
2004-01-01
 
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