Leçons — 3ème Année

A stunning image of the Milky Way galaxy as seen from Earth’s night sky, showing a bright band of stars and dust clouds stretching across the sky with labeled parts: spiral arms, galactic center, and solar system location.

A glowing yellow Sun on the left shoots perfectly straight yellow rays of light across a vast starry backdrop to a blue planet on the right; small comets and asteroids drift nearby in the emptiness while Education Atlas stands in the foreground holding a flashlight aimed at a cluster of distant stars, demonstrating that light always travels in perfectly straight lines through the darkness of space.

A night sky showing the Moon in different phases arranged in a circle around Earth; ocean waves with high and low tides; 'education/atlas' pointing at the Moon phases with a tide gauge next to him.

A bright daytime scene on one side with the Sun shining, and a dark nighttime scene with stars on the other, showing Earth spinning with Atlas pointing at it holding a globe.

A colorful observatory dome under a starry sky filled with planets, stars, and telescopes scattered around, with the guiding character Atlas holding a telescope.

A world map on a classroom wall is divided into twenty-four colored time zones, each labeled with a clock showing the local time; the Sun's position is shown rising over one region and setting over another on the same map, while people in different continents are doing different activities—eating breakfast, working, and sleeping—all at the same moment, with Education Atlas standing in front holding a large clock and pointing to explain why clocks differ around the world.

A colorful scene showing Earth from space with many satellites orbiting, including weather, communication, and GPS satellites, with the guiding character 'education/atlas' pointing at each.

A colorful space scene showing the Sun, Earth, and Moon aligned in two positions: one for a solar eclipse and one for a lunar eclipse, with bright labels and arrows.

A dynamic scene showing the Sun in the center with planets orbiting around it on curved paths, arrows illustrating gravitational pull, and an astronaut floating on the Moon showing low gravity effects.

An illustrated space scene featuring Pluto, Eris, Ceres, and other small objects like asteroids and comets in the solar system, with labels and a comparison showing a dwarf planet next to a regular planet.

Inside the International Space Station showing astronauts floating, eating, exercising, and sleeping in small cabins, with 'education/atlas' explaining.

A colorful scene showing the solar system with the Sun in the center, asteroid belt between Mars and Jupiter, a bright comet with a glowing tail flying by, and meteors streaking through Earth's atmosphere, with the guiding character 'education/atlas' pointing at each object.

A bright timeline of space history stretches across the scene from the Apollo 11 Moon landing in 1969 to a present-day Mars rover rolling across red soil, with rockets launching and robotic probes flying past giant planets, while Atlas holds a model rocket and points excitedly at each milestone.

A futuristic spaceport with rockets launching, astronauts preparing for missions, Mars landscapes in the background, and holograms showing space colonies.

A bright and fiery Sun with solar flares, surrounded by the planets orbiting it, with Atlas holding a solar filter mask and smiling.

An animated scene showing a tiny glowing dot expanding into a colorful, swirling universe filled with stars and galaxies.

A vibrant image showing a glowing sun with fiery surface details, a cross-section of a star showing core fusion, and a night sky full of twinkling stars.

A colorful illustration showing the Earth with the Moon orbiting it, and several artificial satellites circling in different paths with signals beaming down to Earth.

A vibrant image showing different galaxies: spiral, elliptical, and irregular shapes, with glowing stars, nebulae, and clusters, and a zoom-in on the Milky Way with the solar system highlighted.

Satellites orbiting Earth capturing images of clouds and storms, a weather map displaying predictions, and people using weather apps.

A colorful image showing Earth spinning on its axis with a sun shining on one side, and a path showing Earth orbiting the sun with different seasons illustrated around the orbit.

A colorful classroom with a large table showing a scale model of the solar system made of balls of different sizes, a bright Sun at the center, and posters of planets around the room.

A vibrant illustration showing Earth orbiting the Sun with a tilted axis, highlighting different parts of Earth with seasonal weather (snow in one hemisphere, sunshine in the other), and a calendar marking the seasons.

A vibrant observatory with large telescopes, star charts on walls, portraits of Galileo, Copernicus, and Hubble, and a night sky filled with constellations.

A bright Sun with light beams traveling to Earth and distant stars, a clock showing time passing, and a spaceship measuring distances.

A vibrant scene showing Mars with robotic rovers like Perseverance exploring its surface, alongside spacecraft orbiting other planets, guided by 'education/atlas'.

An animated scene showing the ISS orbiting Earth with astronauts floating outside doing experiments; Earth below shows weather patterns; 'education/atlas' is floating in a space suit pointing at the ISS.

A deep space scene showing a swirling black hole with a glowing accretion disk, nearby stars being pulled in, and a spaceship observing from a safe distance.

A deep space scene shows a perfectly dark circular black hole surrounded by a brilliant swirling disk of orange and white superheated gas. Nearby stars trace curved paths bent by the black hole's immense gravity, and a distant spacecraft observes safely from far away while Atlas in an astronaut suit points at the glowing accretion disk.

Lumi floats beside a slowly spinning blue-and-green Earth globe, shining a bright yellow flashlight Sun onto one curved side while the other side rests in soft shadow.

A bright and engaging scene showing a rocket launching, astronauts on the Moon, and a space probe flying past planets, with labeled parts and timeline milestones.

An observatory on a hill with a large reflecting telescope pointed at a starry sky; inset images show a refracting telescope and a radio telescope; 'education/atlas' is holding a small telescope and looking through it.

A space rover exploring Mars, distant planets with water signs, and a telescope scanning the stars.

A bright image showing the sun at the center with planets orbiting around it in correct order, including Earth, Mars, Jupiter, Saturn with rings, and dwarf planets, with labels and orbit paths.

A colorful diagram showing the star life cycle stages: nebula, protostar, main sequence star, red giant/supergiant, and final stages (white dwarf, neutron star, or black hole), with vivid illustrations.

Nova the astronomy guide stands on a rooftop at dusk, actively spinning a glowing globe with one hand while the other points at the orange horizon where the Sun is sinking, as the first stars begin to appear overhead.

A nighttime sky showing bright stars twinkling and a large glowing Sun with planets orbiting it, 'education/atlas' pointing out the differences.

A bright daytime Earth landscape showing a vivid blue sky with fluffy white clouds, a shining sun, and a dark starry space beyond the atmosphere.

Lumi the glowing firefly guide perches on a backyard telescope at night, pointing one tiny wing up at a star-filled sky while a notebook of sky drawings rests open nearby on a quilt.

Lumi glides through a calm night sky beside a glowing round Moon, holding a flashlight that lights up only one side of a beach ball, with the Moon shown moving along its big curved path around Earth and friendly stars sprinkled all around.

Nova stands on a rooftop at dusk pointing a glowing flashlight at a white foam ball held at arm's length, rotating slowly around herself while a crescent Moon rises in the darkening sky behind her.

Nova the astronomy guide floats beside a glowing model of the solar system, pointing excitedly at a bright comet with a streaming tail facing away from the Sun, a cluster of tumbling rocky asteroids, and Jupiter's moons spinning in neat circles nearby.

Nova floats beside a glowing scale model of the solar system suspended in a dark starfield, pointing excitedly at tiny planet spheres arranged in a curving line stretching away from a blazing golden Sun, each planet a different color and size.

Nova the astronaut guide floats near a glowing scale model of the solar system, pointing excitedly at a lineup of eight planets stretching from a blazing Sun outward into deep starry space, holding a small gray rock in one hand and a swirling blue-and-white balloon in the other to compare.

Nova the astronomy guide stands in a sunlit backyard, holding a tilted globe in one hand and a flashlight in the other, beaming light at different angles onto the globe's surface to show how sunlight strikes Earth differently at different times of year.

Lumi the glowing firefly guide floats in dark space beside a bright golden Sun, gently pointing at eight planets lined up on curved paths from nearest to farthest away.

Lumi sits on a grassy hilltop at night, holding a glowing lantern in one hand and pointing at two stars in the wide dark sky above — one blazing close and one faint and far.

Nova stands on a grassy hilltop at sunrise, holding a spinning globe in both hands and pointing excitedly at the orange Sun just peeking above the eastern horizon.

Lumi the glowing space-guide floats in dark space, holding a bright lamp Sun while a blue Earth ball and a small gray Moon ball line up and cast soft shadows behind them.

Nova stands at a hilltop observatory on a moonless night, pointing a large reflecting telescope toward a patch of sky where the Milky Way arches overhead in a brilliant river of stars, while a logbook of star sketches sits open on a nearby table.