Why do some places wait 1,000 years to see a total solar eclipse while others get two in a decade? The surprising orbital mechanics behind where eclipses happen — and don't.
Astronomers have puzzled for years over a strange pattern in the outer solar system. A surprising number of icy bodies far beyond Neptune resemble snowmen, made of two rounded lobes stuck together.
Out in the Kuiper Belt, the massive doughnut of debris beyond Neptune, about one in 10 kilometer-scale objects have surprised scientists with their unexpected shape. Rather than resembling a ball, ...
A newly studied solar system breaks the usual planet pattern, raising fresh questions about how rocky and gas planets form.
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