It comes down to the speed at which these objects were moving during their formation, and the strength with which their ...

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

Out in the Kuiper Belt, the massive doughnut of debris beyond Neptune, about one in 10 kilometer-scale objects have surprised ...

On Jan. 31, 1958, Explorer 1 became the first satellite launched by the United States. Its primary science instrument, a ...

Active small bodies—including comets, active asteroids, icy minor planets, and transitional objects—occupy a unique position in planetary science. As ...

A new study introduces a global probabilistic forecasting model that predicts when and where ionospheric disturbances—measured by the Rate of total electron content (TEC) Index (ROTI)—are likely to ...

LHS 1903 flips rock and gas on their heads, hinting that late-born planets can rewrite the rules around common red dwarfs for now.

Nearly all of the solar system’s planets are about to file across the night sky in a planetary alignment, and it will be ...

The sun's visible disk has been perfectly free from sunspots for the first time since June 2022, suggesting the current solar ...

A team of scientists from around the world has created the first system that can predict when and where extremely powerful ...

NASA has always made it a point to encourage us citizen scientists to lend them a hand. Right now, they could really use your help protecting Earth against waves of punishing, disruptive solar winds.

Researchers at The Hong Kong University of Science and Technology (HKUST) have developed a multi-source co-evaporation recipe ...