A) Jupiter B) Mars C) Venus D) Mercury
A) Saturn B) Neptune C) Mars D) Jupiter
A) Earth B) Mars C) Venus D) Mercury
A) Venus B) Mars C) Mercury D) Earth
A) Jupiter B) Saturn C) Neptune D) Uranus
A) Mount Everest (Earth) B) Mount Etna (Earth) C) Olympus Mons (Mars) D) Mauna Loa (Earth)
A) Cassini B) Apollo 11 C) New Horizons D) Voyager 1
A) Vesta B) Juno C) Ceres D) Pallas
A) Neptune B) Jupiter C) Uranus D) Saturn
A) Earth B) Mars C) Venus D) Mercury
A) Saturn B) Pluto C) Uranus D) Neptune
A) Io B) Ganymede C) Titan D) Callisto
A) Eris B) Haumea C) Pluto D) Makemake
A) Mars Odyssey B) Mars Pathfinder C) Mars Express D) Mars Science Laboratory
A) Apollo 11 B) Cassini C) New Horizons D) Voyager 1
A) Six B) Eight C) Two D) Four
A) 50% B) 75% C) 90% D) 99.86%
A) Gas giants B) Dwarf planets C) Terrestrial planets D) Ice giants
A) Oort cloud B) Scattered disc C) Asteroid belt D) Kuiper belt
A) Proxima Centauri B) Alpha Centauri A C) Wolf 359 D) Barnard's Star
A) Ceres B) Orcus C) Eris D) Pluto
A) Astronomical unit B) Kuiper belt C) Heliopause D) Scattered disc
A) Dwarf planets B) Moons C) Comets D) Asteroids
A) Scattered disc B) Oort cloud C) Kuiper belt D) Local Cloud
A) 30 AU B) 5 AU C) 200 AU D) 70–90 AU
A) Comets B) Moons C) Dwarf planets D) Asteroids
A) As a group of celestial bodies bound by Earth's gravity. B) As a planetary system including the Sun and all objects that orbit it. C) As a collection of stars and galaxies. D) Only as the Sun and its eight planets.
A) Either the Solar System itself or any planetary system reminiscent of it. B) A specific type of star. C) Only systems outside our galaxy. D) The Sun and its immediate surroundings only.
A) The International Astronomical Union. B) The World Health Organization. C) NASA. D) The European Space Agency.
A) Magnetic fields. B) Nuclear forces. C) Gravity. D) Electromagnetism.
A) Nine. B) Eight. C) Seven. D) Ten.
A) Only systems with more than eight planets. B) A collection of galaxies. C) Any group of planets without a central star. D) A system that includes a star and all objects orbiting it.
A) They all have atmospheres similar to Earth's. B) They are bound to the Sun by gravity and orbit it. C) They do not interact with each other. D) They are all made of gas.
A) Black hole B) White dwarf C) Protoplanetary disc D) Red giant
A) Fission B) Accretion C) Condensation D) Sublimation
A) Heliopause B) Soot line C) Terminator line D) Frost line
A) Heliopause B) Soot line C) Frost line D) Terminator line
A) Heliosphere B) Red giant C) Protoplanetary disc D) Black hole
A) Frost line theory B) Grand tack hypothesis C) Nice model D) Soot line theory
A) 5 billion years B) About 10 billion years C) Around 2 billion years D) 15 billion years
A) Regular satellites. B) Galilean moons. C) Irregular satellites. D) Trojan satellites.
A) Mercury-crossing asteroids B) Near-Earth asteroids C) Venus-crossing asteroids D) Mars-crossing asteroids
A) Kepler's laws of planetary motion B) Hubble's law C) Newton's law of universal gravitation D) Titius–Bode law
A) Orcus B) Quaoar C) Makemake D) Haumea
A) Eris B) Haumea C) Pluto D) Makemake
A) 29. B) 115. C) 16. D) 293.
A) Outside the Solar System B) The Oort cloud C) The Kuiper belt D) The asteroid belt
A) Hale-Bopp cluster B) Kreutz sungrazers C) Encke's group D) Halley's family
A) Meteorites B) Comets C) Dust particles D) Asteroids
A) Pluto B) Orcus C) Haumea D) Makemake
A) Prograde rotation B) Retrograde rotation C) Synchronous rotation D) Elliptical rotation
A) Five times Earth's distance B) One Earth's distance C) Ten times Earth's distance D) Three times Earth's distance
A) Inner Solar System B) Trans-Neptunian region C) Oort Cloud D) Heliopause
A) Iapetus. B) Enceladus. C) Rhea. D) Titan.
A) Solar wind B) Radiation pressure C) Galactic tide D) Magnetic field
A) Randomly B) Radially outward C) Clockwise D) Counter-clockwise
A) M-type B) K-type C) G2-type D) O-type
A) Proxima Centauri B) The 110-meter Avicii Arena in Stockholm C) A 10 cm sphere in Luleå D) A 7.5-meter sphere at Stockholm Arlanda Airport
A) Heliospheric current sheet B) Solar flare arc C) Astrophysical jet D) Magnetic loop
A) It has a thick atmosphere that smooths out features B) Deimos has no craters C) Volcanic activity fills in craters D) The regolith partially covers the impact craters
A) Pallas B) Vesta C) 594913 ꞌAylóꞌchaxnim D) Ceres
A) 110 meters B) 912 km (567 mi) C) 40 km (25 mi) D) 100 meters
A) 59% B) 37% C) 4% D) 25%
A) 1:1 resonance B) 2:1 resonance C) 5:2 resonance D) 3:2 resonance
A) Gases B) Nuclei C) Isotopes D) Metals
A) Cubewanos B) Oort Cloud objects C) Scattered disc objects D) Plutinos
A) Deimos B) Neither, they orbit at equal distances C) Both are equidistant D) Phobos
A) Planet X B) Hyperion C) Neptune II D) Planet Nine
A) Meteorites B) Long-period comets C) Short-period comets D) Asteroids
A) 40 km (25 mi) B) 912 km (567 mi) C) 110 meters D) 100 meters
A) Prograde motion B) Retrograde motion C) Elliptical orbit D) Synchronous rotation
A) Being virtually unexplored B) Presence of numerous comets C) Strong gravitational influence D) Highly populated with asteroids
A) Astronomical halo B) Interplanetary medium C) Solar nebula D) Cosmic dust cloud
A) 362 B) 26,182 C) 37,000 D) 2809
A) Solar wind erosion B) Plate tectonics C) Volcanic eruptions alone D) Impact cratering
A) Cryovolcanic activity B) Tectonic plate movement C) Volcanic eruptions with lava D) Impact cratering
A) Gonggong B) Sedna C) Leleākūhonua D) Eris
A) Ceres B) Vesta C) Pallas D) Hilda
A) Far more inclined at 29° B) The same as Pluto's at 17° C) Less inclined at 17° D) Inclined at 10°
A) Heliosheath B) Bow shock C) Termination shock D) Heliopause
A) Meteor shower B) Zodiacal light C) Comet tail D) Cosmic dust cloud
A) Bow shock B) Heliopause C) Heliosheath D) Termination shock
A) Decreased mass B) Lack of magnetic field C) Lower temperature D) Higher metallicity
A) Metallic minerals B) Silicates C) Basaltic and metamorphic material D) Carbonaceous minerals
A) Stars exploding B) Meteoroids entering the atmosphere C) Satellites re-entering Earth's atmosphere D) Planets passing close to each other
A) Hale-Bopp B) Encke's Comet C) Comet Hyakutake D) Halley's Comet
A) Perihelion B) Aphelion C) Node D) Ecliptic
A) 44,000 mi B) 71,000 km C) 400,000 mi D) 700,000 km
A) About 1% B) Approximately 10% C) More than 5% D) Less than 0.002%
A) The orbital plane B) The galactic plane C) The ecliptic D) The equatorial plane
A) Pluto B) Haumea C) 10199 Chariklo D) 2060 Chiron
A) Terrestrial B) Ice giant C) Gas giant D) Potentially habitable
A) A coma B) An asteroid belt C) A meteor shower D) A zodiacal light
A) Mixed B) Similar C) Unordered D) Ordered
A) Meteor shower B) Comet tail C) Zodiacal light D) Aurora
A) An oval B) A cube C) A comet's tail D) A sphere
A) 362 B) 2809 C) 26,182 D) 37,000
A) Carbon dioxide B) Methane and ammonia C) Hydrogen and helium D) Nitrogen and oxygen
A) Daily B) Seasonally C) On very long timescales D) Instantaneously
A) 30 AU B) 0.0047 AU C) 5.2 AU D) Not provided in the text |