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