Origin of Important Supernova Class

Studies using X-ray and ultraviolet observations from NASA’s Swift satellite provide new insights into the elusive origins of an important class of exploding star called Type Ia supernovae. These explosions, which can outshine their galaxy for weeks, release large and consistent amounts of energy at visible wavelengths. These qualities make them among the most valuable tools for measuring distance in the universe.

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Supermassive Black Hole Twins

With the help their new studies astronomers discovered the second monster black hole at the center of the galaxy, called Markarian 739, which is about 425 million light-years from Earth, located in the constellation Leo, and which presence was revealed in observations by NASA’s Swift satellite and the Chandra X-Ray Observatory.

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