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OpenStem
@openstem · Joined Jul 2026
7420 public items8 groups
Collection3 items
01Astronomy · L1 · Gravity
02Astronomy · L1 · Gravity
03Astronomy · L1 · Gravity Quiz
Astronomy · L1 · Gravity
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Astronomy · L1 · GravityCollection4 items
01Astronomy · L1 · The Four Seasons
02Astronomy · L1 · The Four Seasons
03Astronomy · L1 · The Order of the Seasons
+1 moreAstronomy · L1 · The Four Seasons
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Astronomy · L1 · The Four SeasonsCollection3 items
01Astronomy · L1 · The Space Station
02Astronomy · L1 · The Space Station
03Astronomy · L1 · The Space Station Quiz
Astronomy · L1 · The Space Station
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Astronomy · L1 · The Space StationCollection4 items
01Astronomy · L1 · Humans on the Moon
02Astronomy · L1 · Humans on the Moon
03Astronomy · L1 · The Apollo 11 Mission
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Astronomy · L1 · Humans on the MoonCollection4 items
01Astronomy · L1 · Meteor Showers
02Astronomy · L1 · Meteor Showers
03Astronomy · L1 · How a Meteor Shower Happens
+1 moreAstronomy · L1 · Meteor Showers
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Astronomy · L1 · Meteor ShowersCollection4 items
01Astronomy · L1 · Northern Lights (Auroras)
02Astronomy · L1 · Northern Lights (Auroras)
03Astronomy · L1 · How an Aurora Forms
+1 moreAstronomy · L1 · Northern Lights (Auroras)
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Astronomy · L1 · Northern Lights (Auroras)Collection4 items
01Astronomy · L1 · Satellites: Natural & Artificial
02Astronomy · L1 · Satellites: Natural & Artificial
03Astronomy · L1 · Natural vs. Artificial Satellites
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Astronomy · L1 · Satellites: Natural & ArtificialCollection4 items
01Astronomy · L1 · Mars Exploration
02Astronomy · L1 · Mars Exploration
03Astronomy · L1 · A Mars Rover Mission, Step by Step
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Astronomy · L1 · Mars ExplorationCollection3 items
01Astronomy · L1 · Finding Stars & Planets in the Sky
02Astronomy · L1 · Finding Stars & Planets in the Sky
03Astronomy · L1 · Finding Stars & Planets in the Sky Quiz
Astronomy · L1 · Finding Stars & Planets in the Sky
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Astronomy · L1 · Finding Stars & Planets in the SkyCollection3 items
01Astronomy · L1 · Why a Year Has 365 Days
02Astronomy · L1 · Why a Year Has 365 Days
03Astronomy · L1 · Why a Year Has 365 Days Quiz
Astronomy · L1 · Why a Year Has 365 Days
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Astronomy · L1 · Why a Year Has 365 DaysCollection3 items
01Astronomy · L1 · Venus, Earth's Unfriendly Twin
02Astronomy · L1 · Venus, Earth's Unfriendly Twin
03Astronomy · L1 · Venus, Earth's Unfriendly Twin Quiz
Astronomy · L1 · Venus, Earth's Unfriendly Twin
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Astronomy · L1 · Venus, Earth's Unfriendly TwinCollection3 items
01Astronomy · L1 · Astronomers Who Changed How We See the Sky
02Astronomy · L1 · Astronomers Who Changed How We See the Sky
03Astronomy · L1 · Astronomers Who Changed How We See the Sky Quiz
Astronomy · L1 · Astronomers Who Changed How We See the Sky
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Astronomy · L1 · Astronomers Who Changed How We See the SkyCollection4 items
01Astronomy · L1 · Artemis: Returning to the Moon
02Astronomy · L1 · Artemis: Returning to the Moon
03Astronomy · L1 · From the Moon to Mars
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Astronomy · L1 · Artemis: Returning to the MoonCollection4 items
01Astronomy · L1 · Jupiter, the Giant Planet
02Astronomy · L1 · Jupiter, the Giant Planet
03Astronomy · L1 · Why Jupiter Looks the Way It Does
+1 moreAstronomy · L1 · Jupiter, the Giant Planet
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Astronomy · L1 · Jupiter, the Giant PlanetCollection4 items
01Astronomy · L1 · Saturn's Rings
02Astronomy · L1 · Saturn's Rings
03Astronomy · L1 · What Makes Up Saturn's Rings
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Astronomy · L1 · Saturn's RingsCollection4 items
01Astronomy · L1 · Solar and Lunar Eclipses
02Astronomy · L1 · Solar and Lunar Eclipses
03Astronomy · L1 · Solar Eclipse vs Lunar Eclipse
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Astronomy · L1 · Solar and Lunar EclipsesCollection4 items
01Astronomy · L1 · Spotting the Milky Way
02Astronomy · L1 · Spotting the Milky Way
03Astronomy · L1 · Why the Milky Way Looks Like a Band
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Astronomy · L1 · Spotting the Milky WayCollection4 items
01Astronomy · L1 · Black Holes
02Astronomy · L1 · Black Holes
03Astronomy · L1 · How a Black Hole Forms
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Astronomy · L1 · Black HolesCollection4 items
01Astronomy · L1 · Neptune and Uranus, the Ice Giants
02Astronomy · L1 · Neptune and Uranus, the Ice Giants
03Astronomy · L1 · What Makes Uranus and Neptune 'Ice Giants'
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Astronomy · L1 · Neptune and Uranus, the Ice GiantsCollection7 items
01Astronomy · L2 · The Life Cycle of Stars
02Astronomy · L2 · The Solar System
03Astronomy · L2 · Solar and Lunar Eclipses
+4 moreAstronomy · L2 · Solar System & Stars
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Astronomy · L2 · Solar System & StarsCollection3 items
01Astronomy · L2 · Kepler's Laws of Planetary Motion
02Astronomy · L2 · Kepler's Laws of Planetary Motion
03Astronomy · L2 · Kepler's Laws of Planetary Motion
Astronomy · L2 · Kepler's Laws of Planetary Motion
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Astronomy · L2 · Kepler's Laws of Planetary MotionCollection4 items
01Astronomy · L2 · Gravity and Orbital Motion
02Astronomy · L2 · Gravity and Orbital Motion
03Astronomy · L2 · Newton's Cannonball Thought Experiment
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Astronomy · L2 · Gravity and Orbital MotionCollection3 items
01Astronomy · L2 · The Scale of the Universe
02Astronomy · L2 · The Scale of the Universe
03Astronomy · L2 · The Scale of the Universe
Astronomy · L2 · The Scale of the Universe
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Astronomy · L2 · The Scale of the UniverseCollection4 items
01Astronomy · L2 · Dwarf Planets and the Kuiper Belt
02Astronomy · L2 · Dwarf Planets and the Kuiper Belt
03Astronomy · L2 · Planet, Dwarf Planet, or Small Body?
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Astronomy · L2 · Dwarf Planets and the Kuiper BeltCollection4 items
01Astronomy · L2 · Comets, Asteroids, and Meteoroids
02Astronomy · L2 · Comets, Asteroids, and Meteoroids
03Astronomy · L2 · Meteoroid, Meteor, Meteorite
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Astronomy · L2 · Comets, Asteroids, and MeteoroidsCollection4 items
01Astronomy · L2 · The Milky Way and Other Galaxies
02Astronomy · L2 · The Milky Way and Other Galaxies
03Astronomy · L2 · Types of Galaxies
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Astronomy · L2 · The Milky Way and Other GalaxiesCollection4 items
01Astronomy · L2 · The Sun's Structure and Activity
02Astronomy · L2 · The Sun's Structure and Activity
03Astronomy · L2 · Inside the Sun, Layer by Layer
+1 moreAstronomy · L2 · The Sun's Structure and Activity
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Astronomy · L2 · The Sun's Structure and ActivityCollection4 items
01Astronomy · L2 · The Space Race
02Astronomy · L2 · The Space Race
03Astronomy · L2 · Space Race Timeline
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Astronomy · L2 · The Space RaceCollection3 items
01Astronomy · L2 · Modern Space Missions and Rovers
02Astronomy · L2 · Modern Space Missions and Rovers
03Astronomy · L2 · Modern Space Missions and Rovers
Astronomy · L2 · Modern Space Missions and Rovers
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Astronomy · L2 · Modern Space Missions and RoversCollection3 items
01Astronomy · L2 · Exoplanets
02Astronomy · L2 · Exoplanets
03Astronomy · L2 · Exoplanets
Astronomy · L2 · Exoplanets
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Astronomy · L2 · Exoplanets