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