Astronomy and Space Science Mcqs 141- Which moon of Saturn has lakes of liquid methane? A. TitanB. EnceladusC. GanymedeD. Europa View Answer Answer : A. Titan Description 142- The cosmic microwave background (CMB) radiation is evidence of: A. Dark matterB. Big BangC. Black holesD. Supernova explosions View Answer Answer : B. Big Bang Description 143- A planetary nebula forms from: A. Supernova explosionsB. Planet formationC. Massive stars collapsingD. Low-to-medium mass stars shedding outer layers View Answer Answer : D. Low-to-medium mass stars shedding outer layers Description 144- The Lagrange points are: A. Locations of asteroids onlyB. Points where gravitational forces and orbital motion balanceC. Points inside black holesD. Points where gravitational forces and orbital motion balance View Answer Answer : D. Points where gravitational forces and orbital motion balance Description 145- The Roche limit defines: A. Distance between Sun and EarthB. Distance of Oort CloudC. The orbit where a satellite can remain intactD. The boundary of a black hole View Answer Answer : C. The orbit where a satellite can remain intact Description 146- The Chandrasekhar limit is the maximum mass of a: A. White dwarfB. Neutron starC. Black holeD. Red giant View Answer Answer : A. White dwarf Description 147- The main source of the Sun’s energy is: A. Gravitational contractionB. Radioactive decayC. Nuclear fusion of hydrogen into heliumD. Chemical reactions View Answer Answer : C. Nuclear fusion of hydrogen into helium Description 148- The Titius-Bode law predicts: A. Galaxy distancesB. Black hole formationC. Planetary orbits in the Solar SystemD. Star brightness View Answer Answer : C. Planetary orbits in the Solar System Description 149- Exoplanets discovered outside our Solar System are often found using: A. Transit methodB. Hubble imagingC. Solar eclipsesD. Meteor observation View Answer Answer : A. Transit method Description 150- The Goldilocks zone is: A. Part of a cometB. Area near a black holeC. Region of a star system where liquid water may existD. A type of asteroid belt View Answer Answer : C. Region of a star system where liquid water may exist Description 151- The solar wind consists primarily of: A. NeutrinosB. Charged particles like protons and electrons C. Helium onlyD. Dust only View Answer Answer : B. Charged particles like protons and electrons Description 152- A pulsating variable star is one that: A. Rotates rapidlyB. Explodes periodicallyC. Emits radio waves constantlyD. Changes brightness due to expansion and contraction View Answer Answer : D. Changes brightness due to expansion and contraction Description 153- The closest known black hole to Earth is in: A. Cygnus X-1B. Andromeda GalaxyC. Orion NebulaD. Virgo Cluster View Answer Answer : A. Cygnus X-1 Description 154- The heliocentric model of the Solar System replaced: A. Stellar modelB. Einstein modelC. Geocentric modelD. Newtonian model View Answer Answer : C. Geocentric model Description 155- The main component of gas giants like Jupiter and Saturn is: A. NitrogenB. Carbon dioxideC. OxygenD. Hydrogen and helium View Answer Answer : D. Hydrogen and helium Description 156- The first spacecraft to fly by Pluto was: A. Voyager 1B. New HorizonsC. CassiniD. Pioneer 10 View Answer Answer : B. New Horizons Description 157- The largest known moon in the Solar System is: A. TitanB. GanymedeC. CallistoD. Europa View Answer Answer : B. Ganymede Description 158- The Laniakea Supercluster is: A. An asteroid beltB. A black holeC. Our galaxy clusterD. A nebula View Answer Answer : C. Our galaxy cluster Description 159- The observable universe is estimated to be about: A. 13.8 billion light-yearsB. 4.6 billion light-yearsC. 100 million light-yearsD. 1 billion light-years View Answer Answer : A. 13.8 billion light-years Description 160- The Kuiper Belt lies beyond: A. SaturnB. JupiterC. NeptuneD. Mars View Answer Answer : C. Neptune Description 1 2 3 4 5 6 7 8 9 10 11 12 13 14
