Solar System
Journey through our cosmic neighbourhood — from the scorching, nuclear heart of the Sun to the icy, chaotic reaches of the Oort Cloud.
Live 3D Solar System
Take control. Drag, zoom, and explore NASA's real-time simulation directly on this page.
The Sun
The undisputed king of our system. It contains 99.8% of all the mass in the entire solar system. Its gravity holds everything together, from the biggest planets to the smallest dust grains.
The Eight Planets
From the inner rocky worlds to the outer gas and ice giants.
Mercury
TerrestrialSmallest planet and closest to the Sun. Extreme temperatures range from 430°C in the day to -180°C at night.
Venus
TerrestrialHottest planet at 465°C. Its thick toxic atmosphere traps heat in a devastating runaway greenhouse effect.
Earth
TerrestrialOur home — the only known oasis to harbour life, vast liquid oceans, and a perfectly balanced atmosphere.
Mars
TerrestrialA dusty, cold desert world. It hosts Olympus Mons, a dormant volcano three times taller than Mount Everest.
Jupiter
Gas GiantA colossal world of swirling gases. Its Great Red Spot is a perpetual storm larger than the Earth itself.
Saturn
Gas GiantThe jewel of the solar system. Its breathtaking, complex rings are made almost entirely of ice chunks and rock.
Uranus
Ice GiantAn incredibly cold world that rotates completely on its side, rolling around the sun like a massive blue barrel.
Neptune
Ice GiantDark, cold, and whipped by supersonic winds reaching 2,100 km/h. It takes 165 Earth years to orbit the sun once.
Cosmic Wanderers & Phenomena
The dynamic, chaotic events that occur entirely within our solar system.
Halley's Comet
CometThe most famous short-period comet in history. Made of dark ice and dust, it streaks through our inner solar system and lights up Earth's sky every 76 years.
Perseid Meteor Shower
Debris TrailEvery August, Earth slams into the debris trail left by Comet Swift-Tuttle, causing dozens of bright, fiery meteors to burn up in our atmosphere every hour.
Solar Wind & Auroras
Space WeatherThe Sun constantly blasts out charged plasma. When these magnetic storms hit Earth's magnetic field, they create spectacular glowing green and purple auroras at the poles.
The Outer Limits & Debris
Dwarf planets, rocky belts, and the frozen boundaries of our system.
Main Asteroid Belt
Sitting between Mars and Jupiter, this vast ring is filled with irregular, rocky bodies left over from the early formation of our solar system. It contains millions of asteroids, including the dwarf planet Ceres.
Pluto
Dwarf PlanetFamous for its heart-shaped glacier, Pluto is a complex, icy world with blue skies and spinning moons in the Kuiper Belt.
Ceres
Dwarf PlanetThe largest object in the asteroid belt. It makes up a third of the belt's total mass and may contain an internal ocean of liquid water.
Kuiper Belt & Oort Cloud
The Kuiper Belt is a donut-shaped ring of icy objects beyond Neptune. Even further out lies the Oort Cloud—a giant spherical shell of icy debris surrounding the entire solar system, believed to be the birthplace of long-period comets.
The Cosmic Time Band
From the chaotic birth of the planets to humanity's journey into the dark.
Explore the Step-by-Step Formation ▼ Close the Cosmic Timeline ▲
The Solar Nebula Collapses
A massive, drifting cloud of gas and stellar dust collapses under its own gravity, forming a spinning disk.
The Sun Ignites
The pressure and heat at the dead center of the disk become so extreme that hydrogen atoms begin fusing into helium. The Sun "turns on".
The Gas Giants Form
Further out where it's cold, ice and rock merge to form massive cores, vacuuming up the surrounding hydrogen to create Jupiter and Saturn.
The Inner Rocky Planets Form
Closer to the Sun, heavy elements like iron and silicates smash together over millions of years to form Mercury, Venus, Earth, and Mars.
The Giant Impact (Birth of the Moon)
A Mars-sized proto-planet named 'Theia' violently crashes into the young Earth. The resulting debris ring forms our Moon.
The Late Heavy Bombardment
The gas giants shift their orbits, sending a devastating rain of asteroids and comets into the inner solar system.
Oceans Form on Earth
Water delivered by the relentless bombardment of icy comets condenses as the Earth cools, forming the first oceans.
The Spark of Life
In the deep, warm oceans of Earth, the first simple, single-celled microscopic organisms appear.
The Chicxulub Impact
A 10km-wide asteroid slams into modern-day Mexico, triggering a global winter that wipes out the dinosaurs.
Sputnik 1 & The Space Age
Humanity breaks the bonds of gravity for the first time as the Soviet Union launches a small metal sphere into orbit.
Apollo 11 Moon Landing
Humanity takes its first steps onto another celestial body. Neil Armstrong and Buzz Aldrin walk on the lunar surface.
The Pale Blue Dot
Voyager 1 turns its camera back toward Earth from 6 billion kilometers away, capturing our world as a tiny speck of light.
Entering Interstellar Space
Voyager 1 officially crosses the heliopause, leaving the protective bubble of the Sun and drifting into the void.
Beyond the Solar System
Once we leave the Sun's gravity, we enter the interstellar neighborhood of the Milky Way. Here are our closest stellar companions.
Alpha Centauri System
Triple StarOur closest cosmic neighbors. A breathtaking binary pair of sun-like stars accompanied by a small red dwarf (Proxima).
Sirius (The Dog Star)
Binary StarThe absolute brightest star in Earth's night sky. It glows with a piercing, blinding blue-white light.
The Orion Nebula
Stellar NurseryA colossal, violent cloud of dust and glowing ionized gas where thousands of brand new stars are being born.
Pillars of Creation
Eagle NebulaIconic, towering elephant trunks of interstellar gas and dust slowly being carved by the ultraviolet light of massive young stars.
Solar System
Journey through our cosmic neighbourhood — from the scorching, nuclear heart of the Sun to the icy, chaotic reaches of the Oort Cloud.
Live 3D Solar System
Take control. Drag, zoom, and explore NASA's real-time simulation directly on this page.
The Sun
The undisputed king of our system. It contains 99.8% of all the mass in the entire solar system. Its gravity holds everything together, from the biggest planets to the smallest dust grains.
The Eight Planets
From the inner rocky worlds to the outer gas and ice giants.
Mercury
TerrestrialSmallest planet and closest to the Sun. Extreme temperatures range from 430°C in the day to -180°C at night.
Venus
TerrestrialHottest planet at 465°C. Its thick toxic atmosphere traps heat in a devastating runaway greenhouse effect.
Earth
TerrestrialOur home — the only known oasis to harbour life, vast liquid oceans, and a perfectly balanced atmosphere.
Mars
TerrestrialA dusty, cold desert world. It hosts Olympus Mons, a dormant volcano three times taller than Mount Everest.
Jupiter
Gas GiantA colossal world of swirling gases. Its Great Red Spot is a perpetual storm larger than the Earth itself.
Saturn
Gas GiantThe jewel of the solar system. Its breathtaking, complex rings are made almost entirely of ice chunks and rock.
Uranus
Ice GiantAn incredibly cold world that rotates completely on its side, rolling around the sun like a massive blue barrel.
Neptune
Ice GiantDark, cold, and whipped by supersonic winds reaching 2,100 km/h. It takes 165 Earth years to orbit the sun once.
Cosmic Wanderers & Phenomena
The dynamic, chaotic events that occur entirely within our solar system.
Halley's Comet
CometThe most famous short-period comet in history. Made of dark ice and dust, it streaks through our inner solar system and lights up Earth's sky every 76 years.
Perseid Meteor Shower
Debris TrailEvery August, Earth slams into the debris trail left by Comet Swift-Tuttle, causing dozens of bright, fiery meteors to burn up in our atmosphere every hour.
Solar Wind & Auroras
Space WeatherThe Sun constantly blasts out charged plasma. When these magnetic storms hit Earth's magnetic field, they create spectacular glowing green and purple auroras at the poles.
The Outer Limits & Debris
Dwarf planets, rocky belts, and the frozen boundaries of our system.
Main Asteroid Belt
Sitting between Mars and Jupiter, this vast ring is filled with irregular, rocky bodies left over from the early formation of our solar system. It contains millions of asteroids, including the dwarf planet Ceres.
Pluto
Dwarf PlanetFamous for its heart-shaped glacier, Pluto is a complex, icy world with blue skies and spinning moons in the Kuiper Belt.
Ceres
Dwarf PlanetThe largest object in the asteroid belt. It makes up a third of the belt's total mass and may contain an internal ocean of liquid water.
Kuiper Belt & Oort Cloud
The Kuiper Belt is a donut-shaped ring of icy objects beyond Neptune. Even further out lies the Oort Cloud—a giant spherical shell of icy debris surrounding the entire solar system, believed to be the birthplace of long-period comets.
The Cosmic Time Band
From the chaotic birth of the planets to humanity's journey into the dark.
Explore the Step-by-Step Formation ▼ Close the Cosmic Timeline ▲
The Solar Nebula Collapses
A massive, drifting cloud of gas and stellar dust collapses under its own gravity, forming a spinning disk.
The Sun Ignites
The pressure and heat at the dead center of the disk become so extreme that hydrogen atoms begin fusing into helium. The Sun "turns on".
The Gas Giants Form
Further out where it's cold, ice and rock merge to form massive cores, vacuuming up the surrounding hydrogen to create Jupiter and Saturn.
The Inner Rocky Planets Form
Closer to the Sun, heavy elements like iron and silicates smash together over millions of years to form Mercury, Venus, Earth, and Mars.
The Giant Impact (Birth of the Moon)
A Mars-sized proto-planet named 'Theia' violently crashes into the young Earth. The resulting debris ring forms our Moon.
The Late Heavy Bombardment
The gas giants shift their orbits, sending a devastating rain of asteroids and comets into the inner solar system.
Oceans Form on Earth
Water delivered by the relentless bombardment of icy comets condenses as the Earth cools, forming the first oceans.
The Spark of Life
In the deep, warm oceans of Earth, the first simple, single-celled microscopic organisms appear.
The Chicxulub Impact
A 10km-wide asteroid slams into modern-day Mexico, triggering a global winter that wipes out the dinosaurs.
Sputnik 1 & The Space Age
Humanity breaks the bonds of gravity for the first time as the Soviet Union launches a small metal sphere into orbit.
Apollo 11 Moon Landing
Humanity takes its first steps onto another celestial body. Neil Armstrong and Buzz Aldrin walk on the lunar surface.
The Pale Blue Dot
Voyager 1 turns its camera back toward Earth from 6 billion kilometers away, capturing our world as a tiny speck of light.
Entering Interstellar Space
Voyager 1 officially crosses the heliopause, leaving the protective bubble of the Sun and drifting into the void.
Beyond the Solar System
Once we leave the Sun's gravity, we enter the interstellar neighborhood of the Milky Way. Here are our closest stellar companions.
Alpha Centauri System
Triple StarOur closest cosmic neighbors. A breathtaking binary pair of sun-like stars accompanied by a small red dwarf (Proxima).
Sirius (The Dog Star)
Binary StarThe absolute brightest star in Earth's night sky. It glows with a piercing, blinding blue-white light.
The Orion Nebula
Stellar NurseryA colossal, violent cloud of dust and glowing ionized gas where thousands of brand new stars are being born.
Pillars of Creation
Eagle NebulaIconic, towering elephant trunks of interstellar gas and dust slowly being carved by the ultraviolet light of massive young stars.