Topic: Sloan Digital Sky Survey
All Content
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Einstein's theory of general relativity gets most extreme test yet
In their efforts to crack the mysteries of gravity, scientists continue to probe Albert Einstein's theory of general relativity. The latest test involved a curious binary star system.
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Astronomers report largest structure in universe. Will it upend theories?
Recent work suggests that the upper limit to the largest gatherings of galaxies is about 1.2 billion to 1.5 billion light-years across. The structure that the team reports is nearly four times this theoretical limit.
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Hubble telescope reveals mysterious 'ghost galaxies' of ancient universe
Formed some 13 billion years ago, three bizarre galaxies captured by the Hubble telescope are thought to be 'fossils' of the early universe
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Massive black hole bends light, magnifying distant galaxy
Located some 1.6 billion light-years from Earth, the energy-spewing black hole acts as a gravitational lens
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