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