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