When Warner Brothers animators wanted to include cutting-edge astronomy in a 1952 Bugs Bunny cartoon they set a scene at an observatory that looks like Palomar Observatory in California.
X-rays of a specific wavelength emanating from the hearts of nearby galaxies and galaxy clusters could be signs of particles of dark matter decaying in space, two independent teams of astronomers report.
Astronomer Robert Wilson lifted his fingers to make air quotes around "problem." The Nobel laureate's problem occurred 50 years ago and would help explain the origins of the universe.
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