Tool
Deep space mission explorer
Explore where NASA's active deep-space missions really are — Voyagers, Webb, Juno, Psyche, Europa Clipper — with live positions and trajectories driven by JPL Horizons ephemeris.
Selected mission
Voyager 1
NASA / JPL · Launched 9/5/1977
Explored Jupiter, Saturn and Titan; now the most distant human-made object.
- Destination
- Interstellar space
- Status
- extended
- Distance from Earth
- —
- Distance from Sun
- —
- Speed (heliocentric)
- —
- One-way signal time
- —
- Round-trip signal
- —
- Time since launch
- —
Mission milestones
Jump the timeline to a specific event.
How far are they now?
Comparison of distances from Earth for all supported missions at the current simulation time.
- Voyager 1Loading…
- Voyager 2Loading…
- James Webb Space TelescopeLoading…
- JunoLoading…
- PsycheLoading…
- Europa ClipperLoading…
Bars use a base-10 logarithmic scale so both nearby (JWST at L2) and interstellar (Voyagers) craft fit on the same chart. Not to physical scale.
Positions are calculated from NASA/JPL Horizons ephemeris data. Planet and spacecraft sizes and some distances are visually adjusted for exploration and are not shown to one common physical scale.
Data sources
Spacecraft positions are fetched from NASA/JPL Horizons through a server-side proxy that caches responses and honours JPL's fair-use guidance. Planet positions are computed with astronomy-engine. The 3D scene is not to physical scale — it is designed for exploration, not measurement.