Question: Recently discovered HR 6819 is the closest-known of what celestial phenomenon/object to Earth?
Neutron Star
Supernova
Black Hole
Yellow Dwarf
Answer: The correct answer is Black Hole
Question: Recently discovered HR 6819 is the closest-known of what celestial phenomenon/object to Earth?
Neutron Star
Supernova
Black Hole
Yellow Dwarf
Answer: The correct answer is Black Hole