Deep Space Mysteries

What this quiz asks

• What is the name of the supermassive black hole at the centre of our Milky Way?
• The first pulsar was discovered in 1967 by a graduate student, Jocelyn Bell Burnell.
• Which Belgian priest and physicist proposed the 'primeval atom', the forerunner of the Big Bang theory?
• Sagittarius A* holds roughly how many million times the mass of the Sun?
• Select ALL of these that have been proposed as particles making up dark matter.
• This emoji is named after our home galaxy. What type of galaxy is the Milky Way?
• Order these milestones from earliest to most recent.
• Can a neutron star, only about 20 km across, hold more mass than the whole Sun?
• What name is given to the idea that the newborn universe expanded exponentially in a tiny fraction of a second?
• Besides hydrogen, which element was mainly produced in the first minutes after the Big Bang?
• Our Sun will one day collapse into a black hole.
• Select ALL of these that are established methods for finding exoplanets.
• Which faint glow, predicted in 1974, would make black holes slowly lose mass over time?
• The Chandrasekhar limit, the most a white dwarf can weigh, is about how many solar masses?
• Order these moments in cosmic history from earliest to latest.
• Roughly what share of the universe's total energy content is dark energy?
• Did observations of distant supernovae in 1998 show that the universe's expansion is speeding up?
• What is the flattened, swirling ring of hot gas spiralling into a black hole called?
• Select ALL of these that are types of neutron star.
• What is the cosmic microwave background?