"This is a crucial step towards characterizing giant planets beyond our solar system." ...

They show up as a mathematical solution in general relativity, basically as a time-reversed version of a black hole. Some ...

All the “normal” matter, like the stars, gas, dust, and people, is called baryonic matter, and it’s basically the tiny visible fraction of a universe that’s mostly invisible and still not fully ...

A newly studied solar system breaks the usual planet pattern, raising fresh questions about how rocky and gas planets form.

Far beyond Neptune, in the frozen depths of the Kuiper Belt, many ancient objects oddly resemble giant snowmen made of ice ...

Planetary systems in the Milky Way galaxy tend to follow a particular pattern: rocky planets toward the center, closest to ...

A new paper in Monthly Notices of the Royal Astronomical Society argues the simplest answer may work: contact binaries like ...

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, ...

Scientists have identified a rocky outer planet in a system where a gas giant was expected. The discovery challenges ...

Webb Telescope finds crystalline water ice around star HD 181327. This discovery could reveal how icy bodies contribute to ...

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.

Astronomers have long debated why so many icy objects in the outer solar system look like snowmen. Michigan State University ...