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Steven Snowden wins John C. Lindsay Award

Congratulations to Steven Snowden who has been selected this year's John C. Lindsay Award winner. The citation will read “For developing the first physically coherent picture of the Local Hot Bubble." This is an incredibly important discovery, solving the origin of the cosmic soft x-ray background after many years of observations and modeling. Steve’s search for answers has relied on multi-wavelength studies spanning the spectrum from the radio to the X-ray as well as on interdisciplinary studies combining astrophysics, heliophysics, and planetary science. He even included results from the Voyager spacecraft as it left the solar system. A recent breakthrough, based on additional information from a sounding rocket experiment, allowed the final pieces of this puzzle to be convincingly put together. The award ceremony and lecture are schedule for Wednesday October 7th as part of the Scientific Colloquium.
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The X-ray Astrophysics Laboratory conducts investigations of a broad range of astronomical systems through detection and analysis of their X-ray emission and other radiation they emit. Objects studied range from nearby solar system objects to cosmological structures. Researchers at the Laboratory investigate the physics of extreme environments, such as those near the event horizons of black holes, and the evolution of stars, galaxies, and large-scale structures.

The Laboratory is the preeminent developer of state-of-the-art X-ray astronomical detectors and optical systems for performing precise spectroscopy, polarimetry, timing, and imaging. These instruments have been employed in numerous suborbital applications (sounding rockets and balloons) and orbiting observatories.

Read a history of X-ray astronomy at Goddard.

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Dr. Robert Petre
Project Scientist [662]
Chief [662]
Joanne Elizabeth Hill
Associate Lab Chief [662]
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