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