Voyager 1 at the speed it moved outward over the year to 2026-10-25 (JPL Horizons). Driving: nonstop, never refuelling.
How it was found
First planet found in 2026, by transit (NASA Exoplanet Archive).
Its planets
LHS 1903 c — 2.1 times Earth's width, a 'sub-Neptune' — bigger than Earth, smaller than Neptune; its year lasts 6 days; about 290 °C, hotter than boiling water; found in 2026 by transit.
LHS 1903 e — 1.7 times Earth's width, a 'sub-Neptune' — bigger than Earth, smaller than Neptune; its year lasts 29 days; about 60 °C, between freezing and boiling; found in 2026 by transit.
LHS 1903 b — 1.4 times Earth's width, about Earth-sized — probably rocky; its year lasts 2 days; about 520 °C, hotter than boiling water; found in 2026 by transit.
LHS 1903 d — 2.5 times Earth's width, a 'sub-Neptune' — bigger than Earth, smaller than Neptune; its year lasts 13 days; about 170 °C, hotter than boiling water; found in 2026 by transit.
NASA Exoplanet Archive, Planetary Systems Composite Parameters (fetched 2026-11-02). Composite values: where a planet's size or mass was not measured, the archive estimates it from the other.
This research has made use of the NASA Exoplanet Archive, which is operated by the California Institute of Technology, under contract with NASA under the Exoplanet Exploration Program.