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CursusAstronomers have, for the first time, determined that asteroid 44 Nysa is composed of three distinct parts, making it unique among known asteroids. The origin of such a structure remains a mystery.
CursusA new study suggests that Titan and Saturn’s famous rings may have formed as a result of a collision between ancient moons several hundred million years ago. The upcoming Dragonfly mission is expected to help confirm these hypotheses.
CursusScientists have proposed a new hypothesis about the origin of Mercury: it may have formed after a collision between two similarly sized protoplanets. This model explains Mercury's unusual structure, but leaves open questions about the composition of its surface.