Black Holes and Dark Energy Quiz

What is the majority of the cosmos made up of?

• Dark matter

• Ordinary matter

• Dark energy

• Vacuum energy

What is the shadowy counterpart of ordinary matter which does not emit, reflect or absorb light?

• Black holes

• Dark matter

• Vacuum energy

• Dark energy

What is the source of the mysterious dark energy that makes up most of the universe, according to astronomers?

• Stars and galaxies

• Black holes

• Supernovas

• The Big Bang

What is the version of the universe we thought we lived in until the late 1990s?

• Oscillating universe

• Contracting universe

• Expanding universe

• Steady state universe

What is the concept proposed to account for the unexpected acceleration of the universe's expansion?

• Vacuum energy

• Dark matter

• Black holes

• Dark energy

What is the mathematical construct at the center of a black hole that should not exist?

• Ergosphere

• Photon sphere

• Singularity

• Event horizon

What is the name given to black holes that weigh millions to billions of times the mass of our Sun?

• Supermassive black holes

• Stellar black holes

• Micro black holes

• Intermediate black holes

What did the team compare to propose that black holes contain vacuum energy and are 'coupled' to the expansion of the universe?

• Dwarf galaxies

• Irregular galaxies

• Spiral galaxies

• Elliptical galaxies

What does the latest paper suggest could explain the origin of dark energy in the universe?

• Gamma-ray bursts

• Stellar explosions

• Pulsars

• Supernovas

What does the latest paper propose could account for all the dark energy that we measure in the universe today?

• Dark matter

• Dark energy

• Black holes

• Vacuum energy