| 21 eclipse at , and follow on Twitter and on Facebook for more | A fleet of orbiting X-ray telescopes, including our and observatories, IGR J18245-2452 as it alternated between generating X-rays and radio waves |
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| Later, with the development of new detectors, scientists opened their eyes to other types of light like radio waves and X-rays | If skies are clear, eclipse-watchers will be able to see a partial solar eclipse over several hours, and some people — within the narrow — will see a total solar eclipse for a few moments |
The first pulsar was observed 50 years ago on August 6, 1967, using radio waves, but since then we have studied them in nearly , including X-rays and gamma rays.
10| 21, all of North America will experience a | The resulting pulsar, nestled inside the nebula that resulted from the supernova explosion, is among the most well-studied objects in our cosmos |
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| Scientists suspect these radical changes could be due to the rise and fall of gas streaming onto the pulsar from its companion star | The radio beacon disappeared and the pulsar brightened fivefold in gamma rays, as if someone had flipped a switch to increase the energy of the system |