
A flaring supermassive black hole 3.7 billion light-years from Earth in the constellation Orion is the suspected source of a super-high-energy subatomic particle, a neutrino, that has launched a new era of space research.
A flaring supermassive black hole 3.7 billion light-years from Earth in the constellation Orion is the suspected source of a super-high-energy subatomic particle, a neutrino, that has launched a new era of space research.