Ranked by years of continuous operation. Voyager 2 leads at 48+ years and counting. Here's the full top 10 — including the rovers, orbiters, and probes that wildly outlived their warranty.
Hubble at 34, Kepler's 2,600 exoplanets, James Webb's deepest infrared views, plus Nancy Grace Roman and Euclid — the space telescopes that rewrote astronomy.
The search for extraterrestrial life in 2025: Perseverance's biosignatures on Mars, Europa Clipper's ocean hunt, Dragonfly at Titan, and Enceladus plume chemistry.
