What is the source of the most powerful release of energy in the universe, second in scale only to the Big Bang?
Gamma-ray bursts are the brightest in the universe, even brighter than the glare of quasars, second only to the brightness and power of the Big Bang. It is believed that arise during disruption of stars by black holes.
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This is the aurora of Jupiter. What are the visible bright spots caused by?
multiple magnetic poles of Jupiter
This unique line of about 20 stars is known as ...