Astronomers marked a milestone year as confirmed exoplanets surpassed 6,000 in 2025. Discoveries ranged from planets orbiting two suns to worlds losing their atmospheres or forming in real time. The findings reshaped ideas about how planets form, survive, and evolve across the Milky Way.Astronomers marked a milestone year as confirmed exoplanets surpassed 6,000 in 2025. Discoveries ranged from planets orbiting two suns to worlds losing their atmospheres or forming in real time. The findings reshaped ideas about how planets form, survive, and evolve across the Milky Way.