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The X-ray light image of the cloud Cassiopeia A versus the visible light image. If you look very closely, you can see a small bright spot near the middle of the cloud in the X-ray image. Scientists say this may be a neutron star or black hole.
Click on image for full size
Courtesy of NASA and the SAO Chandra X-ray Center

NASA Reveals First Images from Chandra
News story originally written on August 27, 1999

NASA revealed the first images from the Chandra X Observatory. Since first being deployed July 23, the Chandra X Observatory has had no problems. Included in the first set are images of a huge cloud with either a neutron star or black hole inside it.

NASA believes the powerful telescope will reveal black holes hiding in the universe. The Chandra takes images using X-rays instead of visual light. X-rays are usually released by really hot objects. Many of these objects cannot be seen with normal light, which means the Hubble Space Telescope cannot see them.

Last modified January 29, 2001 by Jennifer Bergman.

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Windows to the Universe, a project of the National Earth Science Teachers Association, is sponsored in part is sponsored in part through grants from federal agencies (NASA and NOAA), and partnerships with affiliated organizations, including the American Geophysical Union, the Howard Hughes Medical Institute, the Earth System Information Partnership, the American Meteorological Society, the National Center for Science Education, and TERC. The American Geophysical Union and the American Geosciences Institute are Windows to the Universe Founding Partners. NESTA welcomes new Institutional Affiliates in support of our ongoing programs, as well as collaborations on new projects. Contact NESTA for more information. NASA ESIP NCSE HHMI AGU AGI AMS NOAA