TRAPPIST-1
STAR · seven worlds around a tiny sun
A star so small and cool it barely qualifies, yet it owns the most famous planetary family ever found: seven Earth sized worlds, several in the zone where liquid water is possible. The whole system would fit comfortably inside Mercury's orbit. Tiny stars like this live almost forever, so these worlds have trillions of years ahead of them.
🚀 Fly there in the 3D universe