Space Time
Visit other solar systems
Every confirmed exoplanet system — 4,684 of them, from the NASA Exoplanet Archive — flyable in 3D. Planets ride their true eccentric orbits under the time controls, the habitable zone is shaded in, and every planet replays its own discovery. One tap overlays our Solar System for scale. Free, in your browser.
🚀 Visit other star systems Free · 4,684 real systems · True orbits · Habitable zones
Every confirmed system, true orbits
Not a curated handful — the whole NASA Exoplanet Archive: 4,684 systems, more than 6,200 planets. Search by host star or planet name, or filter for habitable-zone worlds, multi-planet systems and nearby stars. Step into any system and the planets move on their measured orbits — true eccentricities included, so elongated orbits look elongated — driven by the same time bar as the Solar System. Scrub a week and watch TRAPPIST-1's inner worlds lap each other. The habitable zone is shaded, so which worlds sit in the liquid-water band is obvious at a glance.
How we found it
Every planet replays its own discovery. Watch the star's light curve dip as the planet transits, see the radial-velocity wobble trace out its pull, or the microlensing spike that betrayed it — each animation built from that planet's real parameters. And if the host star is above your horizon tonight, Space Time tells you where to look for it in your own sky.
Compare to our Solar System
One tap drops our Solar System's orbits in at the same scale. TRAPPIST-1 is a good one to try first: all seven of its planets orbit closer to their star than Mercury does to ours, and seeing both systems drawn together makes that real.
FAQ
Which exoplanet systems can I explore?
All of them — every confirmed system in the NASA Exoplanet Archive, 4,684 systems and 6,200+ planets, searchable and filterable.
Are the orbits real?
Yes. Measured orbits with true eccentricities, driven by the same time controls as the Solar System.
What's the habitable zone?
The band around a star where liquid water could exist. It's shaded in each system, so you can see which planets fall inside.
Can I see how each planet was discovered?
Yes. "How we found it" replays each planet's discovery method — transit dip, radial-velocity wobble, imaging or microlensing — from its real parameters.
Can I compare to our Solar System?
Yes. A one-tap overlay drops our orbits in at the same scale.
Can I see a host star in my own sky?
Often. If it's above your horizon tonight, Space Time tells you where to look and how bright it is.
Is it free?
Yes. In your browser, no account, no download.