2000 SPACE SCIENCE VIDEOTAPES |
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Tape Title | Record ID | Date Produced | TRT: |
Synopsis |
| FOR LATEST NEWS ON SPACE-TIME CURVATURE, TUNE TO THE AM | G00-072 | 08/7/00 | 00:05:02 | Scientists have uncovered sets of oscillating X-ray signals from three neutron stars that may tell the story of the bending of the fabric of space-time around these objects, much like an AM radio signal carries the details of a science talk show buried within its set of radio waves.
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TAPE CONTENTS: |
| ITEM (1): Extreme Gravity -- Bending Time And Space - NASA's Rossi X-ray Timing Explorer (RXTE) has previously detected very rapid oscillations in the brightness of X-ray-emitting neutron stars, evidence of a curvature in space-time. Scientists are now seeing sidebands, another set of oscillations that provide even more detail about this world of extreme gravity. This is important new information needed to describe the environs of these fascinating objects.
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| ITEM (2): Frame Dragging - Dragging Time And Space - This Animation traces the paths of matter falling in toward a spinning black hole. Because the gravitational field near the black hole is so intense, the black hole is literally dragging space and time around itself as it rotates, an effect called frame dragging. The animation illustrates the distorted paths
material would take if it approached the black hole from different angles.
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| ITEM (3): Distorting Space & Time -Animation represents the space-time distortion caused by a massive, rotating object. It is a top view of a two dimensional space-time grid that has been twisted by a massive object in the center. The twisting is in the direction of the object's rotation. The object's gravitational field is so intense that space and
time are actually being dragged around with the object as it rotates.
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| ITEM (4): Black Hole Animation - This animation of a black holes. According to Einstein's theory of gravity, space-time near a neutron star or as well as a black hole is strongly curved. This curvature of space-time has not been firmly established. The discovery of sidebands in the X-ray emission, however, will allow new tests to see whether Einstein was right.
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| ITEM (5): Neutron Star - Also, according to Einstein's theory of gravity, space-time near a neutron star or a black hole is strongly curved. This curvature of space-time has not been firmly established. The discovery of sidebands in the X-ray emission, however, will allow new tests to see whether Einstein was right.
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| ITEM (6): NASA'S ROSSI X-Ray Timing Explorer (RXTE) Spacecraft - Animation depicting the RXTE studying X-ray emissions.
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Space Science Gallery