| 1. | Chandra supplements the Compton Gamma Ray Observatory and the Hubble Space Telescope.
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| 2. | These are neutron stars that put out steady flashes of gamma rays.
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| 3. | The Compton Gamma Ray Observatory joined the Hubble in orbit in 1991.
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| 4. | Remaining bits of gamma ray energy emerge as X-rays, or visible light.
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| 5. | They also obtained the first evidence that gamma rays can generate positrons.
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| 6. | Among other things, the gamma rays could severely damage Earth's ozone layer.
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| 7. | The germanium isotope emits two weak gamma rays and a conversion electron.
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| 8. | They then went on tour around the world with Gamma Ray again.
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| 9. | Gamma rays have the greatest energy of any form of electromagnetic radiation.
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| 10. | Radioactive isotopes emitting gamma rays are used almost entirely for medical purposes.
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