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A.
Reinhard Genzel
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B.
Andrea Ghez
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C.
Roger Penrose
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D.
Reinhard Genzel and Andrea Ghez
Correct Option: DExplanation:
The Nobel Prize in Physics for the year 2020 was awarded jointly to Reinhard Genzel and Andrea Ghez. They were recognized for their significant contributions in discovering the presence of a supermassive black hole at the center of our galaxy, known as Sagittarius A*. Their groundbreaking research using advanced techniques, such as adaptive optics and long-term observations, provided strong evidence for the existence of these mysterious cosmic objects. Their work revolutionized our understanding of the fundamental forces governing the universe.
Reinhard Genzel, a German astrophysicist, led a team of researchers at the Max Planck Institute for Extraterrestrial Physics. Andrea Ghez, an American astronomer, conducted her pioneering studies at the University of California, Los Angeles (UCLA). Both scientists independently developed innovative methods to study the movements of stars near the galactic center, revealing the presence of an extremely massive and invisible object exerting gravitational influence on surrounding stars.
Their groundbreaking findings have not only shed light on the nature of black holes but also provided further support for Albert Einstein's theory of general relativity. The Nobel Prize recognized their exceptional achievements and their contributions to advancing our knowledge of the universe's mysteries.