A group of astronomers has found a solar system 116 light-years from Earth that seems to challenge current theories about how ...

A team of astronomers has identified a four-planet system orbiting the red dwarf star LHS 1903 that defies conventional expectations about how planets arrange themselves around their host stars. The ...

“While 3I/ATLAS is a visitor from interstellar space, travelling from outside the Solar System, its behaviour is completely ...

Far beyond Neptune, in the frozen depths of the Kuiper Belt, many ancient objects oddly resemble giant snowmen made of ice and rock. For years, scientists wondered how these delicate two-lobed shapes ...

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Since the 1990s, scientists have discovered approximately 6,100 planets outside our solar system, called exoplanets.

Illustration comparing the planets of the Solar System and the Sun on the same scale. The planets are shown to scale relative to each other but their distances are not. From left to right the bodies ...

Deep within the Kuiper belt, some small worlds look like they were assembled from two mismatched snowballs pressed together.