2000 SPACE SCIENCE VIDEOTAPES |
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Tape Title | Record ID | Date Produced | TRT: |
Synopsis |
| Hubble's Legacy | G00-033 | 04/10/00 | 00:21:30 | On April 25, 1990, the Hubble Space Telescope (HST) began its voyage into space after it was deployed from the Space Shuttle Discovery. In the last decade of operation, HST's rapid-fire rate of unprecedented discoveries has invigorated astronomy. As HST looks into the hidden mysteries of space, new details about planets, stars and galaxies come into crystal view. The telescope has produced a steady stream of images that have astounded the world's scientific communities, in some cases confirming astronomical theories and sometimes challenging others.
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TAPE CONTENTS: |
| ITEM (1): HEATBEAT OF THE SUN - Like blood pulsating in an artery, newly-discovered currents of gas beat deep inside the Sun, speeding and slackening every 16 months. These cutaway images of the Sun reveal the solar "heartbeat" throbbing in the same region of the Sun suspected of driving the eleven-year cycle of solar eruptions, during which the Sun goes from stormy to quiet and back again. Red colors indicate regions where the inner gas is moving faster than average, blue colors indicate regions where gas is moving slower than normal. Credit: NSF/NASA/ESA
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| ITEM (2): SPIN CYCLE - LISTENING TO THE HEARTBEAT - To explain the solar cycle, theorists visualize a dynamo inside the Sun. Here the dynamo region the turbulent outer region, the convective zone, meets the orderly interior, or radiative zone. The speed of the gas in this region changes abruptly, which can create disturbances in the magnetic field and move to the surface as sunspots. Credit: NASA/Lockhead Martin
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| ITEM (3): SOLAR CYCLE - OUR CHANGING SUN - These two images from the Solar and Heliospheric Observatory (SOHO) show dramatic changes the Sun undergoes from solar minimum to solar max. Eruptions on the Sun are believed to result from the buildup and rapid release of stress in solar magnetic fields. The frequency and intensity of these eruptions rises to a peak over an eleven year cycle, and scientists believe the cycle is also tied to magnetic activity, except at greater depths within the Sun. Credit: NASA/ESA
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| ITEM (4): SOLAR CYCLE - B-ROLL - The frequency and intensity of the Sun's eruptions rises to a peak over an eleven year cycle, and scientists believe the cycle is also tied to magnetic activity, except at greater depths within the Sun. Credit: NASA
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| ITEM (5): SUNSPOTS - The discovery comes from an international team pooling observations from the Michelson Doppler Imager (MDI) instrument on the Solar and Heliospheric Observatory (SOHO) spacecraft and from a worldwide chain of ground stations called the Global Oscillation Network Group (GONG).
Credit: NASA/ESA
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| ITEM (6): CORONAL MASS EJECTIONS (CMEs) - CMEs are violent discharges of electrically charged gas from the Sun's corona. The largest explosions in the solar system, CMEs hurl up to 10 billion tons of ionized gas into space at speeds of one-to-two million miles an hour. Credit: NASA/ESA
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| ITEM (7): SOHO ANIMATION - Animation of the Solar and Heliospheric Observatory (SOHO) spacecraft. Credit: NASA/ESA
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| ITEM (8): SOLAR SCIENTISTS B-ROLL
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