Welcome to
SPACEDISCOVERY
Explore the cosmos. Discover the universe. Embark on a journey through space and time.
Explore
The Solar System
Click or tap on any celestial body to learn more about it
Click a body to discover
Scale & Context
Cosmic Comparisons
Numbers in space are so extreme they defy intuition. See them as visuals.
Tap any circle to see its image and facts
Key Insight
Jupiter is so massive it contains more than twice the mass of all other planets combined. If the Sun were a basketball, Jupiter would be a marble and Earth a grain of sand.
James Webb Space Telescope
Historic Images
Humanity's deepest view of the cosmos — images that changed our understanding of the universe
Star-forming region
Pillars of Creation
Towering columns of cosmic gas and dust inside the Eagle Nebula (M16) where new stars are being born. Webb reveals thousands of newly formed stars never seen in visible light.
Ask the Cosmos
Fun Facts with Cosmo
Cosmo is a space explorer robot dog. Ask anything and get an answer plus fun facts from across the universe.
Cosmo
Space explorer robot dog
Woof! I'm Cosmo 🚀 Ask me anything about space: planets, stars, black holes… anything! I'll answer and give you 1 fun fact.
Try asking:
What's coming
Upcoming Missions
The future of space exploration is already underway. Here's what happens in the next few years — with a live countdown.
Artemis III
The Moon 🌙
The first humans to walk on the Moon since 1972 — and the first ever to land near the lunar south pole.
Countdown to: Moon landing
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Dragonfly
Titan, moon of Saturn 🪐
A car-sized drone that will fly through the thick orange skies of Titan, Saturn’s biggest moon.
Countdown to: Launch
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Europa Clipper
Europa, moon of Jupiter 🧊
A spacecraft already flying toward Jupiter to explore Europa, an icy moon that hides a giant ocean.
Countdown to: Arrival at Jupiter
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JUICE
Jupiter’s icy moons 🔭
Europe’s explorer heading to Jupiter to study three of its biggest icy moons: Ganymede, Callisto and Europa.
Countdown to: Arrival at Jupiter
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