Term
Venus and special characteristics |
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Definition
Backwards rotation, day longer than year, thick CO2 atmosphere, greenhouse effect, hottest planet |
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Term
Spacecraft to visit Venus? Which orbited and which landed? |
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Definition
Lenara - landed
Magellan - orbited |
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Term
What technique has been used to map the surface of Venus? |
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Definition
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Term
How does the number of craters on Venus compare to other planets? |
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Definition
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Term
How old is the surface of Venus? What controls the age of the surface? |
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Definition
Young surface, 1/2 billion years |
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Term
What is the atmosphere of Venus made of? How does it differ from Earth’s? |
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Definition
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Term
What is the nature of the canals on Mars? Who built an observatory in Arizona to study them? |
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Definition
boundaries by light and dark areas, don't exist. Percival Lowell |
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Term
How many moons does Mars have? Names and origin? |
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Definition
2, Povos and Demos, from asteroid belt |
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Term
Has Mars undergone plate tectonics? |
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Definition
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Term
How do the northern and southern hemispheres of Mars compare? |
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Definition
South has more craters, older |
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Term
What are the Tharsis Bulge, Hellas Basin, Valles Marineris, and Olympus Mons? How were they created? |
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Definition
Tharsis - magma pushing up under crust, Hellas - huge impact, Valles - fault, Olympus - largest volcano in solar system |
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Term
What is the atmosphere of Mars like? Thick or thin? Dominant constituent? |
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Definition
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Term
In what forms can water exist on the surface of Mars? |
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Definition
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Term
What are the various pieces of evidence for water on Mars? |
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Definition
Lenof channels, dry river beds, ejector blankets of impact craters, permafrost below surface of mars, polar ice caps |
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Term
Which Mars probe found water ice beneath the surface? |
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Definition
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Term
What 3 types of probes have visited Mars? |
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Definition
Orbiters, landers, rovers |
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Term
What are the names and notable characteristics of the major probes? |
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Definition
Spirit and Opportunity and Pathfinder - rovers, Phoenix - lander, Viking 1 & 2 - orbiter and lander |
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Term
What are the basic properties of Jupiter, such as mass, composition, and distance from Sun? |
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Definition
LARGEST PLANET, LARGEST MASS, ROTATES FAST, GREAT RED SPOT |
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Term
Which spacecraft have visited Jupiter? Which one included a probe that was dropped into its atmosphere? |
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Definition
PIONEER 10&11, VOYAGER 1&2, ORBITED-GALILEO –DROPPED PROBE INTO ATMOSPHERE |
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Term
What is the Great Red Spot? How long has it existed? Why so long? |
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Definition
FEW HUNDRED YEARS, SURVIVE BC JUPITER DOESN’T HAVE CONTINENTS |
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Term
Why does Jupiter experience such high winds? |
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Definition
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Term
Which comet collided with Jupiter in 1994? |
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Definition
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Term
What are the names and properties of Jupiter’s 4 largest moons? |
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Definition
IO-VOLCANOS, EUROPA-LIQUID OCEAN, GANYMEDE-LARGEST MOON IN SOLAR SYSTEM, CALISTO |
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Term
Which spacecraft have visited Saturn? Which one included a probe that landed on Titan? |
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Definition
PIONEER, VOYAGER, CUSINI-ORBITTING-TOOK ALONG LANDER THAT DROPPED ON TITAN |
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Term
Who discovered the rings of Saturn? A gap in the rings? Who first proposed that the rings are made of particles? |
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Definition
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Term
Why does the orientation of Saturn’s rings change over time when seen from Earth? |
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Definition
BC OF OUR CHANGING POINT OF VIEW DURING ORBIT OF SATURN |
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Term
What are Saturn’s rings made of? Their thickness? |
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Definition
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Term
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Definition
LITTLE MOONS THAT KEEP RINGS CONFINED |
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Term
What is Saturn’s largest moon? Properties? |
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Definition
TITAN, ONLY MOON WITH AN ATMOSPHERE, OPEN BODIES OF LIQUID (METHANE OR METHADINE) |
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Term
What are the notable characteristics of Enceladus and Iapetus? |
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Definition
E-ICY MOON GEOLOGICALLY ACTIVE (LIKE IO-HEATED BY TIDAL FORCES), I-HALF BRIGHT AND HALF DARK |
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Term
Which spacecraft have visited Uranus and Neptune? |
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Definition
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Term
Who discovered Uranus? How did astronomers know where to look for Neptune? |
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Definition
HERSHEL, AFFECTS ORBIT OF URANUS |
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Term
What is Neptune’s largest moon? Properties and likely origin? |
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Definition
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Term
What are the basic properties of Pluto, such as mass, composition, and distance from the Sun? |
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Definition
SMALLEST, NOT A PLANET -PART OF KUIPER BELT, 40 AU FROM SUN, 250 YEARS TO ORBIT SUN ONCE |
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Term
Which spacecraft have visited Pluto? |
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Definition
ZERO, ONE ON ITS WAY-NEW HORIZONS |
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Term
Who discovered Pluto? How? |
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Definition
CLYDE TOMBAUGH, TOOK PHOTOGRAPHS, POINT OF LIGHT, TIMELAPSE PHOTOS |
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Term
How does the orbit of Pluto compare to the 8 planets? |
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Definition
ELYPTICAL PLANE IS TILTED |
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Term
Why isn’t Pluto considered a planet? What is the official classification of Pluto now? Other members of this class? |
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Definition
SERIUS-200 YEARS AGO, ERES-FEW YEARS AGO |
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Term
Which moon is a twin of Pluto? |
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Definition
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Term
How many moons does Pluto have? |
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Definition
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Term
What are the 3 regions of the solar system containing asteroids and comets? Typical orbital periods? |
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Definition
ASTEROID BELT-SEVERAL YEARS, KUIPER BELT-100S OF YEARS, OORT CLOUD-MILLIONS OF YEARS |
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Term
What are the largest known members of the Asteroid Belt and Kuiper Belt? 2nd largest? |
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Definition
ASTEROID-SERIES AND VESTA, KUIPER-PLUTO AND ERES |
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Term
What are comets and asteroids made of? |
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Definition
COMETS- ROCKS AND METALS, ASTEROIDS-ROCKS AND METAL |
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Term
Which probes have visited comets and asteroids? |
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Definition
STAR DUST-COLLECTED DUST, FLY BY ASTEROID-GALILEO, DEEP IMPACT-, ORBITTING VESTA-DAWN |
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Term
What are meteoroids, meteors, falling stars, shooting stars, bolides, fireballs, and meteorites? |
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Definition
METEOROID-IN SPACE AND SMALLER, METEORITE-MAKE TO GROUND, SHOOTING STAR, METEOR, FALLING STAR-BRIGHT METEORS |
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Term
What are the sizes of meteoroids? Ones that are able to reach the ground? |
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Definition
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Term
What kind of spectrum does a meteor produce? |
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Definition
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Term
What is the typical rate of meteors for a random night? During meteor showers? |
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Definition
1 HOUR-4 METEORS, 1 EVERY MINUTE |
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Term
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Definition
GLOW NEAR HORIZON AFTER SUNSET/BEFORE SUNRISE, PRODUCED BY DUST IN SOLAR SYSTEM REFLECTED BY SUN |
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Term
Why is there no record of the early earth? |
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Definition
EROSION, PLATE TECTONICS, LARGE IMPACTS |
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Term
How old is the earliest evidence for life? |
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Definition
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Term
What is the Miller-Urey experiment? |
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Definition
TRY TO REPRODUCE CONDITIONS OF YOUNG EARTH, AMINO ACIDS |
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Term
What element is the basis for organic molecules? |
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Definition
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Term
What molecule is important for helping organic molecules combine into larger, more complex molecules (and life)? |
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Definition
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Term
What is the habitable zone? |
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Definition
RANGE OF DISTANCE AROUND STAR WHERE WATER CAN SURVIVE ON PLANETS |
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Term
Why are very large and very small planets bad places for life to form? |
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Definition
SMALL-CANT HOLD ONTO ATMOSPHERE, NO MAGNETIC FIELD AND NO PLATE TECTONICS; LARGE-WONT HAVE SOLID SURFACE |
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Term
The presence of which element in a planet’s atmosphere is evidence for life? |
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Definition
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Term
What are the 6 methods of searching for planets around other stars? |
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Definition
PULSAR TIMING, ASTROMETRY, RADIAL VELOCITY, TRANSITS, LENSING AND IMAGING |
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Term
Which 3 methods are used to detect the wobble of a star? |
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Definition
ASTROMETRY, RADIAL VELOCITY, AND TRANSITS |
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Term
How does the velocity of a wobbling star depend on the planet’s distance and mass? |
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Definition
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Term
How was the first planet outside of our solar system discovered? What kind of star does it orbit? |
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Definition
RADIAL VELOCITY, 51 PEG IS THE STAR |
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Term
Which method has discovered the most planets? |
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Definition
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Term
How many planets have been found outside our solar system? |
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Definition
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Term
Which method of searching for planets has a large participation by amateur astronomers? |
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Definition
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Term
What is the name of the equation that estimates the number of communicating civilizations in our galaxy? |
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Definition
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Term
What are some of the factors go into that equation? |
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Definition
# OF STARS, # OF STARS W/HABITABLE PLANETS, # OF HABITABLE PLANETS IN EACH SYSTEM, # OF HABITABLE PLANETS, ETc |
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Term
What wavelengths of light offer the best chance of communication with other civilizations? |
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Definition
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Term
Who discovered Venus has phases? |
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Definition
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Term
Why doesn’t Venus transit the Sun every time it orbits the Sun? |
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Definition
orbit of Venus is tilted relative to the orbit of Earth |
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Term
A larger fraction of Earth can see a transit of Venus than can see a solar eclipse. Why? |
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Definition
Venus is farther away than the moon |
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Term
What is the main process that reshapes the surface of Venus and determines its age? |
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Definition
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Term
Which hemisphere of Mars has younger surface? |
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Definition
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Term
How was Valles Marineris created? |
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Definition
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Term
What is the min amount of time needed for a radio transmission from Earth to arrive on Mars? |
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Definition
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Term
Which did not include an orbiter? |
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Definition
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Term
First rover to land on Mars? |
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Definition
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Term
If two planets have the same rotational periods (length of a day), but different diameters, for which one is the surface traveling at a higher velocity as it rotates? |
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Definition
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Term
If you obtained a spectrum of the aurora on Jupiter, what would you see? |
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Definition
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Term
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Definition
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Term
When the Sun becomes a red giant, Titan’s atmosphere will become: |
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Definition
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Term
Triton used to be a part of… |
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Definition
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Term
Which dwarf planet is smallest? |
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Definition
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Term
Which dwarf planet was discovered first? |
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Definition
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Term
Typical orbital periods of asteroids? |
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Definition
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Term
Typical orbital periods of Kuiper belt objects? |
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Definition
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Term
Typical orbital periods of Oort cloud objects? |
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Definition
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Term
Average distance between asteroids in the asteroid belt? |
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Definition
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Term
Largest known member of Kuiper belt? |
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Definition
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Term
Short-period comets come from? |
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Definition
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Term
Compared to comets, meteors are… |
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Definition
smaller in size and closer to us |
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Term
Spectrum seen from a meteor? |
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Definition
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Term
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Definition
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Term
Building block of all forms of life: |
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Definition
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Term
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Definition
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Term
The velocity of a star as it wobbles will be faster if the orbiting planet is… |
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Definition
closer to the star and has more mass |
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Term
Which planets are easiest to detect via transits? |
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Definition
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Term
How many planets have been found around other stars? |
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Definition
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Term
What technique was used to find the first known planet around another star? |
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Definition
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Term
Which technique is practiced by amateur astronomers with small telescopes? |
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Definition
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