A) Hydrogen. B) Helium. C) Oxygen. D) Iron.
A) Geometric shapes of galaxies. B) Interactions between charged particles. C) Radioactive decay. D) Lack of energy.
A) Increase the speed of light. B) Can absorb all light. C) Can cause light to become polarized. D) Can create new colors.
A) An area of low pressure. B) A change in the structure of magnetic fields. C) A sudden increase in pressure and temperature. D) A flat line in a spectrograph.
A) Produces new elements. B) Enhances the transport of energy and particles. C) Reduces the speed of light. D) Causes instability in stars.
A) Propagation of Alfvén waves. B) The movement of planets. C) The size of a galaxy. D) The speed of light.
A) By repelling each other due to electric charge. B) By blocking cosmic rays. C) By collapsing under gravity and undergoing nuclear fusion. D) By emitting strong radio waves.
A) Through mental visualization. B) By sending rockets into space. C) Through direct physical contact. D) Through observations, simulations, and laboratory experiments.
A) A warp in the space-time continuum. B) A massive release of plasma and magnetic fields from a star's corona. C) A change in the speed of light. D) A sudden brightening of a distant galaxy.
A) A type of asteroid. B) A natural light display caused by the interaction of charged particles with a planet's magnetic field. C) A hot area in the center of the Sun. D) A formation of ice on comets.
A) By observing the shape of black holes. B) By studying the behavior of accretion disks around black holes. C) By detecting gravitational waves from black holes. D) By measuring the temperature on black hole surfaces.
A) They have no significant role in space. B) They shield galaxies from cosmic rays. C) They are the largest structures in the universe and act as highways for gas and galaxies. D) They emit strong magnetic fields.
A) Sudden bursts of radiation. B) Expansion of the universe. C) Opposing magnetic field lines breaking and reconnecting. D) Collision of planets.
A) Saturn B) Mars C) Earth D) Jupiter
A) Boomerang Nebula B) The Sun's surface C) Earth's poles D) The center of a star
A) Jupiter B) Andromeda Galaxy C) Saturn D) The Sun |