The stars with the most confirmed planets are the Sun (the Solar System's star) and Kepler-90, with eight confirmed planets each, followed by TRAPPIST-1 with seven planets. The multiplanetary …

Sep 25, 2025 · Our planetary system is the only one officially called “solar system,” but astronomers have discovered more than 3,200 other stars with planets orbiting them in our galaxy. That’s just how …

Nov 14, 2023 · Exoplanets are worlds that orbit stars other than the sun. Since their discovery in the 1990s, these alien planets have been revealing that the universe is a diverse place.

Oct 30, 2025 · From the total of 4,584 stars known to have exoplanets (as of 30 October 2025), there are a total of 1,017 known multiplanetary systems, [1] or stars with at least two confirmed planets, …

Jan 3, 2026 · The discovery of extrasolar planets—planets circling other stars—would help clarify their ideas of the formation of Earth’s solar system by removing the handicap of being able to study only …

Known Planetary Systems There are 258 known planetary systems around main sequence stars,

Just a few decades ago, our entire sense of what worlds could be like throughout the entire Universe was limited to just eight planets: the worlds of our Solar System. Our ideas about how planets form, …